1 /* vi: set sw=4 ts=4: */
2 /* fdisk.c -- Partition table manipulator for Linux.
4 * Copyright (C) 1992 A. V. Le Blanc (LeBlanc@mcc.ac.uk)
5 * Copyright (C) 2001,2002 Vladimir Oleynik <dzo@simtreas.ru> (initial bb port)
7 * Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
10 #include <assert.h> /* assert */
14 /* Looks like someone forgot to add this to config system */
15 #ifndef ENABLE_FEATURE_FDISK_BLKSIZE
16 # define ENABLE_FEATURE_FDISK_BLKSIZE 0
17 # define USE_FEATURE_FDISK_BLKSIZE(a)
20 #define DEFAULT_SECTOR_SIZE 512
21 #define MAX_SECTOR_SIZE 2048
22 #define SECTOR_SIZE 512 /* still used in osf/sgi/sun code */
23 #define MAXIMUM_PARTS 60
25 #define ACTIVE_FLAG 0x80
28 #define WIN98_EXTENDED 0x0f
29 #define LINUX_PARTITION 0x81
30 #define LINUX_SWAP 0x82
31 #define LINUX_NATIVE 0x83
32 #define LINUX_EXTENDED 0x85
33 #define LINUX_LVM 0x8e
34 #define LINUX_RAID 0xfd
36 #define IS_EXTENDED(i) \
37 ((i) == EXTENDED || (i) == WIN98_EXTENDED || (i) == LINUX_EXTENDED)
39 #define SIZE(a) (sizeof(a)/sizeof((a)[0]))
41 #define cround(n) (display_in_cyl_units ? ((n)/units_per_sector)+1 : (n))
42 #define scround(x) (((x)+units_per_sector-1)/units_per_sector)
46 unsigned char sectors;
47 unsigned short cylinders;
51 #define HDIO_GETGEO 0x0301 /* get device geometry */
57 static unsigned sector_size = DEFAULT_SECTOR_SIZE;
58 static unsigned user_set_sector_size;
59 static unsigned sector_offset = 1;
62 * Raw disk label. For DOS-type partition tables the MBR,
63 * with descriptions of the primary partitions.
65 #if (MAX_SECTOR_SIZE) > (BUFSIZ+1)
66 static char MBRbuffer[MAX_SECTOR_SIZE];
68 # define MBRbuffer bb_common_bufsiz1
71 #if ENABLE_FEATURE_OSF_LABEL
72 static int possibly_osf_label;
75 static unsigned heads, sectors, cylinders;
76 static void update_units(void);
80 * return partition name - uses static storage unless buf is supplied
83 partname(const char *dev, int pno, int lth)
85 static char buffer[80];
92 bufsiz = sizeof(buffer);
97 if (isdigit(dev[w-1]))
100 /* devfs kludge - note: fdisk partition names are not supposed
101 to equal kernel names, so there is no reason to do this */
102 if (strcmp(dev + w - 4, "disc") == 0) {
110 snprintf(bufp, bufsiz, "%*.*s%s%-2u",
111 lth-wp-2, w, dev, p, pno);
113 snprintf(bufp, bufsiz, "%.*s%s%-2u", w, dev, p, pno);
119 unsigned char boot_ind; /* 0x80 - active */
120 unsigned char head; /* starting head */
121 unsigned char sector; /* starting sector */
122 unsigned char cyl; /* starting cylinder */
123 unsigned char sys_ind; /* What partition type */
124 unsigned char end_head; /* end head */
125 unsigned char end_sector; /* end sector */
126 unsigned char end_cyl; /* end cylinder */
127 unsigned char start4[4]; /* starting sector counting from 0 */
128 unsigned char size4[4]; /* nr of sectors in partition */
132 ioctl_error, unable_to_open, unable_to_read, unable_to_seek,
137 label_dos, label_sun, label_sgi, label_aix, label_osf
139 #define LABEL_IS_DOS (label_dos == current_label_type)
141 #if ENABLE_FEATURE_SUN_LABEL
142 #define LABEL_IS_SUN (label_sun == current_label_type)
143 #define STATIC_SUN static
145 #define LABEL_IS_SUN 0
146 #define STATIC_SUN extern
149 #if ENABLE_FEATURE_SGI_LABEL
150 #define LABEL_IS_SGI (label_sgi == current_label_type)
151 #define STATIC_SGI static
153 #define LABEL_IS_SGI 0
154 #define STATIC_SGI extern
157 #if ENABLE_FEATURE_AIX_LABEL
158 #define LABEL_IS_AIX (label_aix == current_label_type)
159 #define STATIC_AIX static
161 #define LABEL_IS_AIX 0
162 #define STATIC_AIX extern
165 #if ENABLE_FEATURE_OSF_LABEL
166 #define LABEL_IS_OSF (label_osf == current_label_type)
167 #define STATIC_OSF static
169 #define LABEL_IS_OSF 0
170 #define STATIC_OSF extern
173 enum action { fdisk, require, try_only, create_empty_dos, create_empty_sun };
175 static enum label_type current_label_type;
177 static const char *disk_device;
178 static int fd; /* the disk */
179 static int partitions = 4; /* maximum partition + 1 */
180 static int display_in_cyl_units = 1;
181 static unsigned units_per_sector = 1;
182 #if ENABLE_FEATURE_FDISK_WRITABLE
183 static void change_units(void);
184 static void reread_partition_table(int leave);
185 static void delete_partition(int i);
186 static int get_partition(int warn, int max);
187 static void list_types(const struct systypes *sys);
188 static unsigned read_int(unsigned low, unsigned dflt, unsigned high, unsigned base, char *mesg);
190 static const char *partition_type(unsigned char type);
191 static void fdisk_fatal(enum failure why) ATTRIBUTE_NORETURN;
192 static void get_geometry(void);
193 static int get_boot(enum action what);
198 #define hex_val(c) ({ \
200 isdigit(_c) ? _c - '0' : \
201 tolower(_c) + 10 - 'a'; \
205 #define LINE_LENGTH 800
206 #define pt_offset(b, n) ((struct partition *)((b) + 0x1be + \
207 (n) * sizeof(struct partition)))
208 #define sector(s) ((s) & 0x3f)
209 #define cylinder(s, c) ((c) | (((s) & 0xc0) << 2))
211 #define hsc2sector(h,s,c) (sector(s) - 1 + sectors * \
212 ((h) + heads * cylinder(s,c)))
213 #define set_hsc(h,s,c,sector) { \
214 s = sector % sectors + 1; \
216 h = sector % heads; \
219 s |= (sector >> 2) & 0xc0; \
223 static unsigned get_start_sect(const struct partition *p);
224 static unsigned get_nr_sects(const struct partition *p);
227 * per partition table entry data
229 * The four primary partitions have the same sectorbuffer (MBRbuffer)
230 * and have NULL ext_pointer.
231 * Each logical partition table entry has two pointers, one for the
232 * partition and one link to the next one.
235 struct partition *part_table; /* points into sectorbuffer */
236 struct partition *ext_pointer; /* points into sectorbuffer */
237 #if ENABLE_FEATURE_FDISK_WRITABLE
238 char changed; /* boolean */
240 off_t offset; /* disk sector number */
241 char *sectorbuffer; /* disk sector contents */
242 } ptes[MAXIMUM_PARTS];
245 #if ENABLE_FEATURE_FDISK_WRITABLE
247 set_all_unchanged(void)
251 for (i = 0; i < MAXIMUM_PARTS; i++)
255 static ATTRIBUTE_ALWAYS_INLINE void
260 #endif /* CONFIG_FEATURE_FDISK_WRITABLE */
262 static ATTRIBUTE_ALWAYS_INLINE struct partition *
263 get_part_table(int i)
265 return ptes[i].part_table;
270 { /* n==1: use singular */
272 return display_in_cyl_units ? _("cylinder") : _("sector");
274 return display_in_cyl_units ? _("cylinders") : _("sectors");
278 valid_part_table_flag(const char *mbuffer)
280 return (mbuffer[510] == 0x55 && (uint8_t)mbuffer[511] == 0xaa);
283 #if ENABLE_FEATURE_FDISK_WRITABLE
284 static ATTRIBUTE_ALWAYS_INLINE void
285 write_part_table_flag(char *b)
291 static char line_buffer[LINE_LENGTH];
292 static char *line_ptr;
294 /* read line; return 0 or first char */
298 fflush(stdout); /* requested by niles@scyld.com */
299 line_ptr = line_buffer;
300 if (!fgets(line_buffer, LINE_LENGTH, stdin)) {
302 bb_error_msg_and_die("\ngot EOF, exiting");
304 while (*line_ptr && !isgraph(*line_ptr))
310 read_nonempty(const char *mesg)
314 } while (!read_line());
319 read_maybe_empty(const char *mesg)
323 line_ptr = line_buffer;
331 read_hex(const struct systypes *sys)
335 read_nonempty(_("Hex code (type L to list codes): "));
336 if (*line_ptr == 'l' || *line_ptr == 'L') {
340 v = bb_strtoul(line_ptr, NULL, 16);
342 /* Bad input also triggers this */
347 #endif /* CONFIG_FEATURE_FDISK_WRITABLE */
349 #include "fdisk_aix.c"
352 unsigned char info[128]; /* Informative text string */
353 unsigned char spare0[14];
355 unsigned char spare1;
357 unsigned char spare2;
360 unsigned char spare1[246]; /* Boot information etc. */
361 unsigned short rspeed; /* Disk rotational speed */
362 unsigned short pcylcount; /* Physical cylinder count */
363 unsigned short sparecyl; /* extra sects per cylinder */
364 unsigned char spare2[4]; /* More magic... */
365 unsigned short ilfact; /* Interleave factor */
366 unsigned short ncyl; /* Data cylinder count */
367 unsigned short nacyl; /* Alt. cylinder count */
368 unsigned short ntrks; /* Tracks per cylinder */
369 unsigned short nsect; /* Sectors per track */
370 unsigned char spare3[4]; /* Even more magic... */
371 struct sun_partinfo {
372 uint32_t start_cylinder;
373 uint32_t num_sectors;
375 unsigned short magic; /* Magic number */
376 unsigned short csum; /* Label xor'd checksum */
378 #define sunlabel ((sun_partition *)MBRbuffer)
380 #define SUN_WHOLE_DISK 5
381 STATIC_OSF void bsd_select(void);
382 STATIC_OSF void xbsd_print_disklabel(int);
383 #include "fdisk_osf.c"
385 #define SGI_VOLHDR 0x00
386 /* 1 and 2 were used for drive types no longer supported by SGI */
387 #define SGI_SWAP 0x03
388 /* 4 and 5 were for filesystem types SGI haven't ever supported on MIPS CPUs */
389 #define SGI_VOLUME 0x06
391 #define SGI_LVOL 0x08
392 #define SGI_RLVOL 0x09
394 #define SGI_XFSLOG 0x0b
397 #define SGI_ENTIRE_DISK SGI_VOLUME
398 #if ENABLE_FEATURE_SGI_LABEL || ENABLE_FEATURE_SUN_LABEL
400 fdisk_swap16(uint16_t x)
402 return (x << 8) | (x >> 8);
406 fdisk_swap32(uint32_t x)
409 ((x & 0xFF00) << 8) |
410 ((x & 0xFF0000) >> 8) |
415 STATIC_SGI const struct systypes sgi_sys_types[];
416 STATIC_SGI unsigned sgi_get_num_sectors(int i);
417 STATIC_SGI int sgi_get_sysid(int i);
418 STATIC_SGI void sgi_delete_partition(int i);
419 STATIC_SGI void sgi_change_sysid(int i, int sys);
420 STATIC_SGI void sgi_list_table(int xtra);
421 STATIC_SGI void sgi_set_xcyl(void);
422 STATIC_SGI int verify_sgi(int verbose);
423 STATIC_SGI void sgi_add_partition(int n, int sys);
424 STATIC_SGI void sgi_set_swappartition(int i);
425 STATIC_SGI const char *sgi_get_bootfile(void);
426 STATIC_SGI void sgi_set_bootfile(const char* aFile);
427 STATIC_SGI void create_sgiinfo(void);
428 STATIC_SGI void sgi_write_table(void);
429 STATIC_SGI void sgi_set_bootpartition(int i);
431 #include "fdisk_sgi.c"
433 STATIC_SUN const struct systypes sun_sys_types[];
434 STATIC_SUN void sun_delete_partition(int i);
435 STATIC_SUN void sun_change_sysid(int i, int sys);
436 STATIC_SUN void sun_list_table(int xtra);
437 STATIC_SUN void sun_set_xcyl(void);
438 STATIC_SUN void add_sun_partition(int n, int sys);
439 STATIC_SUN void sun_set_alt_cyl(void);
440 STATIC_SUN void sun_set_ncyl(int cyl);
441 STATIC_SUN void sun_set_xcyl(void);
442 STATIC_SUN void sun_set_ilfact(void);
443 STATIC_SUN void sun_set_rspeed(void);
444 STATIC_SUN void sun_set_pcylcount(void);
445 STATIC_SUN void toggle_sunflags(int i, unsigned char mask);
446 STATIC_SUN void verify_sun(void);
447 STATIC_SUN void sun_write_table(void);
448 #include "fdisk_sun.c"
450 /* DOS partition types */
452 static const struct systypes i386_sys_types[] = {
455 { "\x04" "FAT16 <32M" },
456 { "\x05" "Extended" }, /* DOS 3.3+ extended partition */
457 { "\x06" "FAT16" }, /* DOS 16-bit >=32M */
458 { "\x07" "HPFS/NTFS" }, /* OS/2 IFS, eg, HPFS or NTFS or QNX */
459 { "\x0a" "OS/2 Boot Manager" },/* OS/2 Boot Manager */
460 { "\x0b" "Win95 FAT32" },
461 { "\x0c" "Win95 FAT32 (LBA)" },/* LBA really is 'Extended Int 13h' */
462 { "\x0e" "Win95 FAT16 (LBA)" },
463 { "\x0f" "Win95 Ext'd (LBA)" },
464 { "\x11" "Hidden FAT12" },
465 { "\x12" "Compaq diagnostics" },
466 { "\x14" "Hidden FAT16 <32M" },
467 { "\x16" "Hidden FAT16" },
468 { "\x17" "Hidden HPFS/NTFS" },
469 { "\x1b" "Hidden Win95 FAT32" },
470 { "\x1c" "Hidden Win95 FAT32 (LBA)" },
471 { "\x1e" "Hidden Win95 FAT16 (LBA)" },
472 { "\x3c" "PartitionMagic recovery" },
473 { "\x41" "PPC PReP Boot" },
475 { "\x63" "GNU HURD or SysV" }, /* GNU HURD or Mach or Sys V/386 (such as ISC UNIX) */
476 { "\x80" "Old Minix" }, /* Minix 1.4a and earlier */
477 { "\x81" "Minix / old Linux" },/* Minix 1.4b and later */
478 { "\x82" "Linux swap" }, /* also Solaris */
480 { "\x84" "OS/2 hidden C: drive" },
481 { "\x85" "Linux extended" },
482 { "\x86" "NTFS volume set" },
483 { "\x87" "NTFS volume set" },
484 { "\x8e" "Linux LVM" },
485 { "\x9f" "BSD/OS" }, /* BSDI */
486 { "\xa0" "IBM Thinkpad hibernation" },
487 { "\xa5" "FreeBSD" }, /* various BSD flavours */
488 { "\xa6" "OpenBSD" },
489 { "\xa8" "Darwin UFS" },
491 { "\xab" "Darwin boot" },
492 { "\xb7" "BSDI fs" },
493 { "\xb8" "BSDI swap" },
494 { "\xbe" "Solaris boot" },
495 { "\xeb" "BeOS fs" },
496 { "\xee" "EFI GPT" }, /* Intel EFI GUID Partition Table */
497 { "\xef" "EFI (FAT-12/16/32)" },/* Intel EFI System Partition */
498 { "\xf0" "Linux/PA-RISC boot" },/* Linux/PA-RISC boot loader */
499 { "\xf2" "DOS secondary" }, /* DOS 3.3+ secondary */
500 { "\xfd" "Linux raid autodetect" },/* New (2.2.x) raid partition with
501 autodetect using persistent
503 #if 0 /* ENABLE_WEIRD_PARTITION_TYPES */
504 { "\x02" "XENIX root" },
505 { "\x03" "XENIX usr" },
506 { "\x08" "AIX" }, /* AIX boot (AIX -- PS/2 port) or SplitDrive */
507 { "\x09" "AIX bootable" }, /* AIX data or Coherent */
509 { "\x18" "AST SmartSleep" },
510 { "\x24" "NEC DOS" },
512 { "\x40" "Venix 80286" },
514 { "\x4e" "QNX4.x 2nd part" },
515 { "\x4f" "QNX4.x 3rd part" },
516 { "\x50" "OnTrack DM" },
517 { "\x51" "OnTrack DM6 Aux1" }, /* (or Novell) */
518 { "\x52" "CP/M" }, /* CP/M or Microport SysV/AT */
519 { "\x53" "OnTrack DM6 Aux3" },
520 { "\x54" "OnTrackDM6" },
521 { "\x55" "EZ-Drive" },
522 { "\x56" "Golden Bow" },
523 { "\x5c" "Priam Edisk" },
524 { "\x61" "SpeedStor" },
525 { "\x64" "Novell Netware 286" },
526 { "\x65" "Novell Netware 386" },
527 { "\x70" "DiskSecure Multi-Boot" },
530 { "\x94" "Amoeba BBT" }, /* (bad block table) */
531 { "\xa7" "NeXTSTEP" },
532 { "\xbb" "Boot Wizard hidden" },
533 { "\xc1" "DRDOS/sec (FAT-12)" },
534 { "\xc4" "DRDOS/sec (FAT-16 < 32M)" },
535 { "\xc6" "DRDOS/sec (FAT-16)" },
537 { "\xda" "Non-FS data" },
538 { "\xdb" "CP/M / CTOS / ..." },/* CP/M or Concurrent CP/M or
539 Concurrent DOS or CTOS */
540 { "\xde" "Dell Utility" }, /* Dell PowerEdge Server utilities */
541 { "\xdf" "BootIt" }, /* BootIt EMBRM */
542 { "\xe1" "DOS access" }, /* DOS access or SpeedStor 12-bit FAT
543 extended partition */
544 { "\xe3" "DOS R/O" }, /* DOS R/O or SpeedStor */
545 { "\xe4" "SpeedStor" }, /* SpeedStor 16-bit FAT extended
546 partition < 1024 cyl. */
547 { "\xf1" "SpeedStor" },
548 { "\xf4" "SpeedStor" }, /* SpeedStor large partition */
549 { "\xfe" "LANstep" }, /* SpeedStor >1024 cyl. or LANstep */
550 { "\xff" "BBT" }, /* Xenix Bad Block Table */
556 #if ENABLE_FEATURE_FDISK_WRITABLE
557 /* start_sect and nr_sects are stored little endian on all machines */
558 /* moreover, they are not aligned correctly */
560 store4_little_endian(unsigned char *cp, unsigned val)
567 #endif /* CONFIG_FEATURE_FDISK_WRITABLE */
570 read4_little_endian(const unsigned char *cp)
572 return cp[0] + (cp[1] << 8) + (cp[2] << 16) + (cp[3] << 24);
575 #if ENABLE_FEATURE_FDISK_WRITABLE
577 set_start_sect(struct partition *p, unsigned start_sect)
579 store4_little_endian(p->start4, start_sect);
584 get_start_sect(const struct partition *p)
586 return read4_little_endian(p->start4);
589 #if ENABLE_FEATURE_FDISK_WRITABLE
591 set_nr_sects(struct partition *p, unsigned nr_sects)
593 store4_little_endian(p->size4, nr_sects);
598 get_nr_sects(const struct partition *p)
600 return read4_little_endian(p->size4);
603 /* normally O_RDWR, -l option gives O_RDONLY */
604 static int type_open = O_RDWR;
607 static int ext_index; /* the prime extended partition */
608 static int listing; /* no aborts for fdisk -l */
609 static int dos_compatible_flag = ~0;
610 #if ENABLE_FEATURE_FDISK_WRITABLE
611 static int dos_changed;
612 static int nowarn; /* no warnings for fdisk -l/-s */
617 static unsigned user_cylinders, user_heads, user_sectors;
618 static unsigned pt_heads, pt_sectors;
619 static unsigned kern_heads, kern_sectors;
621 static off_t extended_offset; /* offset of link pointers */
623 static unsigned long long total_number_of_sectors;
626 static jmp_buf listingbuf;
628 static void fdisk_fatal(enum failure why)
634 longjmp(listingbuf, 1);
639 message = "\nUnable to open %s";
642 message = "\nUnable to read %s";
645 message = "\nUnable to seek on %s";
647 case unable_to_write:
648 message = "\nUnable to write %s";
651 message = "\nBLKGETSIZE ioctl failed on %s";
654 message = "\nFatal error";
657 bb_error_msg_and_die(message, disk_device);
661 seek_sector(off_t secno)
663 off_t offset = secno * sector_size;
664 if (lseek(fd, offset, SEEK_SET) == (off_t) -1)
665 fdisk_fatal(unable_to_seek);
668 #if ENABLE_FEATURE_FDISK_WRITABLE
670 write_sector(off_t secno, char *buf)
673 if (write(fd, buf, sector_size) != sector_size)
674 fdisk_fatal(unable_to_write);
678 /* Allocate a buffer and read a partition table sector */
680 read_pte(struct pte *pe, off_t offset)
683 pe->sectorbuffer = xmalloc(sector_size);
685 if (read(fd, pe->sectorbuffer, sector_size) != sector_size)
686 fdisk_fatal(unable_to_read);
687 #if ENABLE_FEATURE_FDISK_WRITABLE
690 pe->part_table = pe->ext_pointer = NULL;
694 get_partition_start(const struct pte *pe)
696 return pe->offset + get_start_sect(pe->part_table);
699 #if ENABLE_FEATURE_FDISK_WRITABLE
701 * Avoid warning about DOS partitions when no DOS partition was changed.
702 * Here a heuristic "is probably dos partition".
703 * We might also do the opposite and warn in all cases except
704 * for "is probably nondos partition".
707 is_dos_partition(int t)
709 return (t == 1 || t == 4 || t == 6 ||
710 t == 0x0b || t == 0x0c || t == 0x0e ||
711 t == 0x11 || t == 0x12 || t == 0x14 || t == 0x16 ||
712 t == 0x1b || t == 0x1c || t == 0x1e || t == 0x24 ||
713 t == 0xc1 || t == 0xc4 || t == 0xc6);
720 puts(_("Command action"));
721 puts(_("\ta\ttoggle a read only flag")); /* sun */
722 puts(_("\tb\tedit bsd disklabel"));
723 puts(_("\tc\ttoggle the mountable flag")); /* sun */
724 puts(_("\td\tdelete a partition"));
725 puts(_("\tl\tlist known partition types"));
726 puts(_("\tm\tprint this menu"));
727 puts(_("\tn\tadd a new partition"));
728 puts(_("\to\tcreate a new empty DOS partition table"));
729 puts(_("\tp\tprint the partition table"));
730 puts(_("\tq\tquit without saving changes"));
731 puts(_("\ts\tcreate a new empty Sun disklabel")); /* sun */
732 puts(_("\tt\tchange a partition's system id"));
733 puts(_("\tu\tchange display/entry units"));
734 puts(_("\tv\tverify the partition table"));
735 puts(_("\tw\twrite table to disk and exit"));
736 #if ENABLE_FEATURE_FDISK_ADVANCED
737 puts(_("\tx\textra functionality (experts only)"));
741 puts(_("Command action"));
742 puts(_("\ta\tselect bootable partition")); /* sgi flavour */
743 puts(_("\tb\tedit bootfile entry")); /* sgi */
744 puts(_("\tc\tselect sgi swap partition")); /* sgi flavour */
745 puts(_("\td\tdelete a partition"));
746 puts(_("\tl\tlist known partition types"));
747 puts(_("\tm\tprint this menu"));
748 puts(_("\tn\tadd a new partition"));
749 puts(_("\to\tcreate a new empty DOS partition table"));
750 puts(_("\tp\tprint the partition table"));
751 puts(_("\tq\tquit without saving changes"));
752 puts(_("\ts\tcreate a new empty Sun disklabel")); /* sun */
753 puts(_("\tt\tchange a partition's system id"));
754 puts(_("\tu\tchange display/entry units"));
755 puts(_("\tv\tverify the partition table"));
756 puts(_("\tw\twrite table to disk and exit"));
759 puts(_("Command action"));
760 puts(_("\tm\tprint this menu"));
761 puts(_("\to\tcreate a new empty DOS partition table"));
762 puts(_("\tq\tquit without saving changes"));
763 puts(_("\ts\tcreate a new empty Sun disklabel")); /* sun */
766 puts(_("Command action"));
767 puts(_("\ta\ttoggle a bootable flag"));
768 puts(_("\tb\tedit bsd disklabel"));
769 puts(_("\tc\ttoggle the dos compatibility flag"));
770 puts(_("\td\tdelete a partition"));
771 puts(_("\tl\tlist known partition types"));
772 puts(_("\tm\tprint this menu"));
773 puts(_("\tn\tadd a new partition"));
774 puts(_("\to\tcreate a new empty DOS partition table"));
775 puts(_("\tp\tprint the partition table"));
776 puts(_("\tq\tquit without saving changes"));
777 puts(_("\ts\tcreate a new empty Sun disklabel")); /* sun */
778 puts(_("\tt\tchange a partition's system id"));
779 puts(_("\tu\tchange display/entry units"));
780 puts(_("\tv\tverify the partition table"));
781 puts(_("\tw\twrite table to disk and exit"));
782 #if ENABLE_FEATURE_FDISK_ADVANCED
783 puts(_("\tx\textra functionality (experts only)"));
787 #endif /* CONFIG_FEATURE_FDISK_WRITABLE */
790 #if ENABLE_FEATURE_FDISK_ADVANCED
795 puts(_("Command action"));
796 puts(_("\ta\tchange number of alternate cylinders")); /*sun*/
797 puts(_("\tc\tchange number of cylinders"));
798 puts(_("\td\tprint the raw data in the partition table"));
799 puts(_("\te\tchange number of extra sectors per cylinder"));/*sun*/
800 puts(_("\th\tchange number of heads"));
801 puts(_("\ti\tchange interleave factor")); /*sun*/
802 puts(_("\to\tchange rotation speed (rpm)")); /*sun*/
803 puts(_("\tm\tprint this menu"));
804 puts(_("\tp\tprint the partition table"));
805 puts(_("\tq\tquit without saving changes"));
806 puts(_("\tr\treturn to main menu"));
807 puts(_("\ts\tchange number of sectors/track"));
808 puts(_("\tv\tverify the partition table"));
809 puts(_("\tw\twrite table to disk and exit"));
810 puts(_("\ty\tchange number of physical cylinders")); /*sun*/
813 puts(_("Command action"));
814 puts(_("\tb\tmove beginning of data in a partition")); /* !sun */
815 puts(_("\tc\tchange number of cylinders"));
816 puts(_("\td\tprint the raw data in the partition table"));
817 puts(_("\te\tlist extended partitions")); /* !sun */
818 puts(_("\tg\tcreate an IRIX (SGI) partition table"));/* sgi */
819 puts(_("\th\tchange number of heads"));
820 puts(_("\tm\tprint this menu"));
821 puts(_("\tp\tprint the partition table"));
822 puts(_("\tq\tquit without saving changes"));
823 puts(_("\tr\treturn to main menu"));
824 puts(_("\ts\tchange number of sectors/track"));
825 puts(_("\tv\tverify the partition table"));
826 puts(_("\tw\twrite table to disk and exit"));
829 puts(_("Command action"));
830 puts(_("\tb\tmove beginning of data in a partition")); /* !sun */
831 puts(_("\tc\tchange number of cylinders"));
832 puts(_("\td\tprint the raw data in the partition table"));
833 puts(_("\te\tlist extended partitions")); /* !sun */
834 puts(_("\tg\tcreate an IRIX (SGI) partition table"));/* sgi */
835 puts(_("\th\tchange number of heads"));
836 puts(_("\tm\tprint this menu"));
837 puts(_("\tp\tprint the partition table"));
838 puts(_("\tq\tquit without saving changes"));
839 puts(_("\tr\treturn to main menu"));
840 puts(_("\ts\tchange number of sectors/track"));
841 puts(_("\tv\tverify the partition table"));
842 puts(_("\tw\twrite table to disk and exit"));
844 puts(_("Command action"));
845 puts(_("\tb\tmove beginning of data in a partition")); /* !sun */
846 puts(_("\tc\tchange number of cylinders"));
847 puts(_("\td\tprint the raw data in the partition table"));
848 puts(_("\te\tlist extended partitions")); /* !sun */
849 puts(_("\tf\tfix partition order")); /* !sun, !aix, !sgi */
850 #if ENABLE_FEATURE_SGI_LABEL
851 puts(_("\tg\tcreate an IRIX (SGI) partition table"));/* sgi */
853 puts(_("\th\tchange number of heads"));
854 puts(_("\tm\tprint this menu"));
855 puts(_("\tp\tprint the partition table"));
856 puts(_("\tq\tquit without saving changes"));
857 puts(_("\tr\treturn to main menu"));
858 puts(_("\ts\tchange number of sectors/track"));
859 puts(_("\tv\tverify the partition table"));
860 puts(_("\tw\twrite table to disk and exit"));
863 #endif /* ADVANCED mode */
865 #if ENABLE_FEATURE_FDISK_WRITABLE
866 static const struct systypes *
870 LABEL_IS_SUN ? sun_sys_types :
871 LABEL_IS_SGI ? sgi_sys_types :
875 #define get_sys_types() i386_sys_types
876 #endif /* CONFIG_FEATURE_FDISK_WRITABLE */
878 static const char *partition_type(unsigned char type)
881 const struct systypes *types = get_sys_types();
883 for (i = 0; types[i].name; i++)
884 if ((unsigned char )types[i].name[0] == type)
885 return types[i].name + 1;
891 #if ENABLE_FEATURE_FDISK_WRITABLE
895 return LABEL_IS_SUN ? sunlabel->infos[i].id :
896 (LABEL_IS_SGI ? sgi_get_sysid(i) :
897 ptes[i].part_table->sys_ind);
900 void list_types(const struct systypes *sys)
902 unsigned last[4], done = 0, next = 0, size;
905 for (i = 0; sys[i].name; i++);
908 for (i = 3; i >= 0; i--)
909 last[3 - i] = done += (size + i - done) / (i + 1);
913 printf("%c%2x %-15.15s", i ? ' ' : '\n',
914 (unsigned char)sys[next].name[0],
915 partition_type((unsigned char)sys[next].name[0]));
916 next = last[i++] + done;
917 if (i > 3 || next >= last[i]) {
921 } while (done < last[0]);
924 #endif /* CONFIG_FEATURE_FDISK_WRITABLE */
927 is_cleared_partition(const struct partition *p)
929 return !(!p || p->boot_ind || p->head || p->sector || p->cyl ||
930 p->sys_ind || p->end_head || p->end_sector || p->end_cyl ||
931 get_start_sect(p) || get_nr_sects(p));
935 clear_partition(struct partition *p)
939 memset(p, 0, sizeof(struct partition));
942 #if ENABLE_FEATURE_FDISK_WRITABLE
944 set_partition(int i, int doext, off_t start, off_t stop, int sysid)
950 p = ptes[i].ext_pointer;
951 offset = extended_offset;
953 p = ptes[i].part_table;
954 offset = ptes[i].offset;
958 set_start_sect(p, start - offset);
959 set_nr_sects(p, stop - start + 1);
960 if (dos_compatible_flag && (start/(sectors*heads) > 1023))
961 start = heads*sectors*1024 - 1;
962 set_hsc(p->head, p->sector, p->cyl, start);
963 if (dos_compatible_flag && (stop/(sectors*heads) > 1023))
964 stop = heads*sectors*1024 - 1;
965 set_hsc(p->end_head, p->end_sector, p->end_cyl, stop);
971 test_c(const char **m, const char *mesg)
975 printf(_("You must set"));
987 const char *m = NULL;
991 prev = test_c(&m, _("heads"));
993 prev = test_c(&m, _("sectors"));
995 prev = test_c(&m, _("cylinders"));
1000 #if ENABLE_FEATURE_FDISK_WRITABLE
1001 "You can do this from the extra functions menu.\n"
1003 , prev ? _(" and ") : " ", m);
1008 static void update_units(void)
1010 int cyl_units = heads * sectors;
1012 if (display_in_cyl_units && cyl_units)
1013 units_per_sector = cyl_units;
1015 units_per_sector = 1; /* in sectors */
1018 #if ENABLE_FEATURE_FDISK_WRITABLE
1020 warn_cylinders(void)
1022 if (LABEL_IS_DOS && cylinders > 1024 && !nowarn)
1024 "The number of cylinders for this disk is set to %d.\n"
1025 "There is nothing wrong with that, but this is larger than 1024,\n"
1026 "and could in certain setups cause problems with:\n"
1027 "1) software that runs at boot time (e.g., old versions of LILO)\n"
1028 "2) booting and partitioning software from other OSs\n"
1029 " (e.g., DOS FDISK, OS/2 FDISK)\n"),
1035 read_extended(int ext)
1039 struct partition *p, *q;
1043 pex->ext_pointer = pex->part_table;
1045 p = pex->part_table;
1046 if (!get_start_sect(p)) {
1047 printf(_("Bad offset in primary extended partition\n"));
1051 while (IS_EXTENDED(p->sys_ind)) {
1052 struct pte *pe = &ptes[partitions];
1054 if (partitions >= MAXIMUM_PARTS) {
1055 /* This is not a Linux restriction, but
1056 this program uses arrays of size MAXIMUM_PARTS.
1057 Do not try to 'improve' this test. */
1058 struct pte *pre = &ptes[partitions-1];
1059 #if ENABLE_FEATURE_FDISK_WRITABLE
1060 printf(_("Warning: deleting partitions after %d\n"),
1064 clear_partition(pre->ext_pointer);
1068 read_pte(pe, extended_offset + get_start_sect(p));
1070 if (!extended_offset)
1071 extended_offset = get_start_sect(p);
1073 q = p = pt_offset(pe->sectorbuffer, 0);
1074 for (i = 0; i < 4; i++, p++) if (get_nr_sects(p)) {
1075 if (IS_EXTENDED(p->sys_ind)) {
1076 if (pe->ext_pointer)
1077 printf(_("Warning: extra link "
1078 "pointer in partition table"
1079 " %d\n"), partitions + 1);
1081 pe->ext_pointer = p;
1082 } else if (p->sys_ind) {
1084 printf(_("Warning: ignoring extra "
1085 "data in partition table"
1086 " %d\n"), partitions + 1);
1092 /* very strange code here... */
1093 if (!pe->part_table) {
1094 if (q != pe->ext_pointer)
1097 pe->part_table = q + 1;
1099 if (!pe->ext_pointer) {
1100 if (q != pe->part_table)
1101 pe->ext_pointer = q;
1103 pe->ext_pointer = q + 1;
1106 p = pe->ext_pointer;
1110 #if ENABLE_FEATURE_FDISK_WRITABLE
1111 /* remove empty links */
1113 for (i = 4; i < partitions; i++) {
1114 struct pte *pe = &ptes[i];
1116 if (!get_nr_sects(pe->part_table) &&
1117 (partitions > 5 || ptes[4].part_table->sys_ind)) {
1118 printf("omitting empty partition (%d)\n", i+1);
1119 delete_partition(i);
1120 goto remove; /* numbering changed */
1126 #if ENABLE_FEATURE_FDISK_WRITABLE
1128 create_doslabel(void)
1133 _("Building a new DOS disklabel. Changes will remain in memory only,\n"
1134 "until you decide to write them. After that, of course, the previous\n"
1135 "content won't be recoverable.\n\n"));
1137 current_label_type = label_dos;
1139 #if ENABLE_FEATURE_OSF_LABEL
1140 possibly_osf_label = 0;
1144 for (i = 510-64; i < 510; i++)
1146 write_part_table_flag(MBRbuffer);
1147 extended_offset = 0;
1148 set_all_unchanged();
1150 get_boot(create_empty_dos);
1152 #endif /* CONFIG_FEATURE_FDISK_WRITABLE */
1155 get_sectorsize(void)
1157 if (!user_set_sector_size) {
1159 if (ioctl(fd, BLKSSZGET, &arg) == 0)
1161 if (sector_size != DEFAULT_SECTOR_SIZE)
1162 printf(_("Note: sector size is %d (not %d)\n"),
1163 sector_size, DEFAULT_SECTOR_SIZE);
1168 get_kernel_geometry(void)
1170 struct hd_geometry geometry;
1172 if (!ioctl(fd, HDIO_GETGEO, &geometry)) {
1173 kern_heads = geometry.heads;
1174 kern_sectors = geometry.sectors;
1175 /* never use geometry.cylinders - it is truncated */
1180 get_partition_table_geometry(void)
1182 const unsigned char *bufp = (const unsigned char *)MBRbuffer;
1183 struct partition *p;
1184 int i, h, s, hh, ss;
1188 if (!(valid_part_table_flag((char*)bufp)))
1192 for (i = 0; i < 4; i++) {
1193 p = pt_offset(bufp, i);
1194 if (p->sys_ind != 0) {
1195 h = p->end_head + 1;
1196 s = (p->end_sector & 077);
1201 } else if (hh != h || ss != s)
1206 if (!first && !bad) {
1216 unsigned long long bytes; /* really u64 */
1219 sec_fac = sector_size / 512;
1220 #if ENABLE_FEATURE_SUN_LABEL
1221 guess_device_type();
1223 heads = cylinders = sectors = 0;
1224 kern_heads = kern_sectors = 0;
1225 pt_heads = pt_sectors = 0;
1227 get_kernel_geometry();
1228 get_partition_table_geometry();
1230 heads = user_heads ? user_heads :
1231 pt_heads ? pt_heads :
1232 kern_heads ? kern_heads : 255;
1233 sectors = user_sectors ? user_sectors :
1234 pt_sectors ? pt_sectors :
1235 kern_sectors ? kern_sectors : 63;
1236 if (ioctl(fd, BLKGETSIZE64, &bytes) == 0) {
1239 unsigned long longsectors;
1241 if (ioctl(fd, BLKGETSIZE, &longsectors))
1243 bytes = ((unsigned long long) longsectors) << 9;
1246 total_number_of_sectors = (bytes >> 9);
1249 if (dos_compatible_flag)
1250 sector_offset = sectors;
1252 cylinders = total_number_of_sectors / (heads * sectors * sec_fac);
1254 cylinders = user_cylinders;
1258 * Read MBR. Returns:
1259 * -1: no 0xaa55 flag present (possibly entire disk BSD)
1260 * 0: found or created label
1264 get_boot(enum action what)
1270 for (i = 0; i < 4; i++) {
1271 struct pte *pe = &ptes[i];
1273 pe->part_table = pt_offset(MBRbuffer, i);
1274 pe->ext_pointer = NULL;
1276 pe->sectorbuffer = MBRbuffer;
1277 #if ENABLE_FEATURE_FDISK_WRITABLE
1278 pe->changed = (what == create_empty_dos);
1282 #if ENABLE_FEATURE_SUN_LABEL
1283 if (what == create_empty_sun && check_sun_label())
1287 memset(MBRbuffer, 0, 512);
1289 #if ENABLE_FEATURE_FDISK_WRITABLE
1290 if (what == create_empty_dos)
1291 goto got_dos_table; /* skip reading disk */
1293 if ((fd = open(disk_device, type_open)) < 0) {
1294 if ((fd = open(disk_device, O_RDONLY)) < 0) {
1295 if (what == try_only)
1297 fdisk_fatal(unable_to_open);
1299 printf(_("You will not be able to write "
1300 "the partition table.\n"));
1303 if (512 != read(fd, MBRbuffer, 512)) {
1304 if (what == try_only)
1306 fdisk_fatal(unable_to_read);
1309 if ((fd = open(disk_device, O_RDONLY)) < 0)
1311 if (512 != read(fd, MBRbuffer, 512))
1319 #if ENABLE_FEATURE_SUN_LABEL
1320 if (check_sun_label())
1324 #if ENABLE_FEATURE_SGI_LABEL
1325 if (check_sgi_label())
1329 #if ENABLE_FEATURE_AIX_LABEL
1330 if (check_aix_label())
1334 #if ENABLE_FEATURE_OSF_LABEL
1335 if (check_osf_label()) {
1336 possibly_osf_label = 1;
1337 if (!valid_part_table_flag(MBRbuffer)) {
1338 current_label_type = label_osf;
1341 printf(_("This disk has both DOS and BSD magic.\n"
1342 "Give the 'b' command to go to BSD mode.\n"));
1346 #if ENABLE_FEATURE_FDISK_WRITABLE
1350 if (!valid_part_table_flag(MBRbuffer)) {
1351 #ifndef CONFIG_FEATURE_FDISK_WRITABLE
1356 printf(_("Device contains neither a valid DOS "
1357 "partition table, nor Sun, SGI or OSF "
1360 #if ENABLE_FEATURE_SUN_LABEL
1369 case create_empty_dos:
1370 #if ENABLE_FEATURE_SUN_LABEL
1371 case create_empty_sun:
1375 bb_error_msg_and_die(_("internal error"));
1377 #endif /* CONFIG_FEATURE_FDISK_WRITABLE */
1380 #if ENABLE_FEATURE_FDISK_WRITABLE
1385 for (i = 0; i < 4; i++) {
1386 struct pte *pe = &ptes[i];
1388 if (IS_EXTENDED(pe->part_table->sys_ind)) {
1389 if (partitions != 4)
1390 printf(_("Ignoring extra extended "
1391 "partition %d\n"), i + 1);
1397 for (i = 3; i < partitions; i++) {
1398 struct pte *pe = &ptes[i];
1400 if (!valid_part_table_flag(pe->sectorbuffer)) {
1401 printf(_("Warning: invalid flag 0x%02x,0x%02x of partition "
1402 "table %d will be corrected by w(rite)\n"),
1403 pe->sectorbuffer[510],
1404 pe->sectorbuffer[511],
1406 #if ENABLE_FEATURE_FDISK_WRITABLE
1415 #if ENABLE_FEATURE_FDISK_WRITABLE
1417 * Print the message MESG, then read an integer between LOW and HIGH (inclusive).
1418 * If the user hits Enter, DFLT is returned.
1419 * Answers like +10 are interpreted as offsets from BASE.
1421 * There is no default if DFLT is not between LOW and HIGH.
1424 read_int(unsigned low, unsigned dflt, unsigned high, unsigned base, char *mesg)
1428 const char *fmt = "%s (%u-%u, default %u): ";
1430 if (dflt < low || dflt > high) {
1431 fmt = "%s (%u-%u): ";
1436 int use_default = default_ok;
1438 /* ask question and read answer */
1440 printf(fmt, mesg, low, high, dflt);
1441 read_maybe_empty("");
1442 } while (*line_ptr != '\n' && !isdigit(*line_ptr)
1443 && *line_ptr != '-' && *line_ptr != '+');
1445 if (*line_ptr == '+' || *line_ptr == '-') {
1446 int minus = (*line_ptr == '-');
1449 i = atoi(line_ptr + 1);
1451 while (isdigit(*++line_ptr))
1454 switch (*line_ptr) {
1457 if (!display_in_cyl_units)
1458 i *= heads * sectors;
1472 absolute = 1000000000;
1478 unsigned long long bytes;
1481 bytes = (unsigned long long) i * absolute;
1482 unit = sector_size * units_per_sector;
1483 bytes += unit/2; /* round */
1492 while (isdigit(*line_ptr)) {
1498 printf(_("Using default value %u\n"), i = dflt);
1499 if (i >= low && i <= high)
1502 printf(_("Value is out of range\n"));
1508 get_partition(int warn, int max)
1513 i = read_int(1, 0, max, 0, _("Partition number")) - 1;
1517 if ((!LABEL_IS_SUN && !LABEL_IS_SGI && !pe->part_table->sys_ind)
1518 || (LABEL_IS_SUN && (!sunlabel->partitions[i].num_sectors || !sunlabel->infos[i].id))
1519 || (LABEL_IS_SGI && !sgi_get_num_sectors(i))
1521 printf(_("Warning: partition %d has empty type\n"), i+1);
1528 get_existing_partition(int warn, int max)
1533 for (i = 0; i < max; i++) {
1534 struct pte *pe = &ptes[i];
1535 struct partition *p = pe->part_table;
1537 if (p && !is_cleared_partition(p)) {
1544 printf(_("Selected partition %d\n"), pno+1);
1547 printf(_("No partition is defined yet!\n"));
1551 return get_partition(warn, max);
1555 get_nonexisting_partition(int warn, int max)
1560 for (i = 0; i < max; i++) {
1561 struct pte *pe = &ptes[i];
1562 struct partition *p = pe->part_table;
1564 if (p && is_cleared_partition(p)) {
1571 printf(_("Selected partition %d\n"), pno+1);
1574 printf(_("All primary partitions have been defined already!\n"));
1578 return get_partition(warn, max);
1585 display_in_cyl_units = !display_in_cyl_units;
1587 printf(_("Changing display/entry units to %s\n"),
1592 toggle_active(int i)
1594 struct pte *pe = &ptes[i];
1595 struct partition *p = pe->part_table;
1597 if (IS_EXTENDED(p->sys_ind) && !p->boot_ind)
1598 printf(_("WARNING: Partition %d is an extended partition\n"), i + 1);
1599 p->boot_ind = (p->boot_ind ? 0 : ACTIVE_FLAG);
1604 toggle_dos_compatibility_flag(void)
1606 dos_compatible_flag = ~dos_compatible_flag;
1607 if (dos_compatible_flag) {
1608 sector_offset = sectors;
1609 printf(_("DOS Compatibility flag is set\n"));
1613 printf(_("DOS Compatibility flag is not set\n"));
1618 delete_partition(int i)
1620 struct pte *pe = &ptes[i];
1621 struct partition *p = pe->part_table;
1622 struct partition *q = pe->ext_pointer;
1624 /* Note that for the fifth partition (i == 4) we don't actually
1625 * decrement partitions.
1628 if (warn_geometry())
1629 return; /* C/H/S not set */
1633 sun_delete_partition(i);
1637 sgi_delete_partition(i);
1642 if (IS_EXTENDED(p->sys_ind) && i == ext_index) {
1644 ptes[ext_index].ext_pointer = NULL;
1645 extended_offset = 0;
1651 if (!q->sys_ind && i > 4) {
1652 /* the last one in the chain - just delete */
1655 clear_partition(ptes[i].ext_pointer);
1656 ptes[i].changed = 1;
1658 /* not the last one - further ones will be moved down */
1660 /* delete this link in the chain */
1661 p = ptes[i-1].ext_pointer;
1663 set_start_sect(p, get_start_sect(q));
1664 set_nr_sects(p, get_nr_sects(q));
1665 ptes[i-1].changed = 1;
1666 } else if (partitions > 5) { /* 5 will be moved to 4 */
1667 /* the first logical in a longer chain */
1670 if (pe->part_table) /* prevent SEGFAULT */
1671 set_start_sect(pe->part_table,
1672 get_partition_start(pe) -
1674 pe->offset = extended_offset;
1678 if (partitions > 5) {
1680 while (i < partitions) {
1681 ptes[i] = ptes[i+1];
1685 /* the only logical: clear only */
1686 clear_partition(ptes[i].part_table);
1693 int i, sys, origsys;
1694 struct partition *p;
1696 /* If sgi_label then don't use get_existing_partition,
1697 let the user select a partition, since get_existing_partition()
1698 only works for Linux like partition tables. */
1699 if (!LABEL_IS_SGI) {
1700 i = get_existing_partition(0, partitions);
1702 i = get_partition(0, partitions);
1706 p = ptes[i].part_table;
1707 origsys = sys = get_sysid(i);
1709 /* if changing types T to 0 is allowed, then
1710 the reverse change must be allowed, too */
1711 if (!sys && !LABEL_IS_SGI && !LABEL_IS_SUN && !get_nr_sects(p)) {
1712 printf(_("Partition %d does not exist yet!\n"), i + 1);
1716 sys = read_hex (get_sys_types());
1718 if (!sys && !LABEL_IS_SGI && !LABEL_IS_SUN) {
1719 printf(_("Type 0 means free space to many systems\n"
1720 "(but not to Linux). Having partitions of\n"
1721 "type 0 is probably unwise. You can delete\n"
1722 "a partition using the 'd' command.\n"));
1726 if (!LABEL_IS_SUN && !LABEL_IS_SGI) {
1727 if (IS_EXTENDED(sys) != IS_EXTENDED(p->sys_ind)) {
1728 printf(_("You cannot change a partition into"
1729 " an extended one or vice versa\n"
1730 "Delete it first.\n"));
1736 if (LABEL_IS_SUN && i == 2 && sys != SUN_WHOLE_DISK)
1737 printf(_("Consider leaving partition 3 "
1738 "as Whole disk (5),\n"
1739 "as SunOS/Solaris expects it and "
1740 "even Linux likes it.\n\n"));
1743 (i == 10 && sys != SGI_ENTIRE_DISK) ||
1744 (i == 8 && sys != 0)
1747 printf(_("Consider leaving partition 9 "
1748 "as volume header (0),\nand "
1749 "partition 11 as entire volume (6)"
1750 "as IRIX expects it.\n\n"));
1755 sun_change_sysid(i, sys);
1756 } else if (LABEL_IS_SGI) {
1757 sgi_change_sysid(i, sys);
1761 printf(_("Changed system type of partition %d "
1762 "to %x (%s)\n"), i + 1, sys,
1763 partition_type(sys));
1764 ptes[i].changed = 1;
1765 if (is_dos_partition(origsys) ||
1766 is_dos_partition(sys))
1772 #endif /* CONFIG_FEATURE_FDISK_WRITABLE */
1775 /* check_consistency() and linear2chs() added Sat Mar 6 12:28:16 1993,
1776 * faith@cs.unc.edu, based on code fragments from pfdisk by Gordon W. Ross,
1777 * Jan. 1990 (version 1.2.1 by Gordon W. Ross Aug. 1990; Modified by S.
1778 * Lubkin Oct. 1991). */
1781 linear2chs(unsigned ls, unsigned *c, unsigned *h, unsigned *s)
1783 int spc = heads * sectors;
1788 *s = ls % sectors + 1; /* sectors count from 1 */
1792 check_consistency(const struct partition *p, int partition)
1794 unsigned pbc, pbh, pbs; /* physical beginning c, h, s */
1795 unsigned pec, peh, pes; /* physical ending c, h, s */
1796 unsigned lbc, lbh, lbs; /* logical beginning c, h, s */
1797 unsigned lec, leh, les; /* logical ending c, h, s */
1799 if (!heads || !sectors || (partition >= 4))
1800 return; /* do not check extended partitions */
1802 /* physical beginning c, h, s */
1803 pbc = (p->cyl & 0xff) | ((p->sector << 2) & 0x300);
1805 pbs = p->sector & 0x3f;
1807 /* physical ending c, h, s */
1808 pec = (p->end_cyl & 0xff) | ((p->end_sector << 2) & 0x300);
1810 pes = p->end_sector & 0x3f;
1812 /* compute logical beginning (c, h, s) */
1813 linear2chs(get_start_sect(p), &lbc, &lbh, &lbs);
1815 /* compute logical ending (c, h, s) */
1816 linear2chs(get_start_sect(p) + get_nr_sects(p) - 1, &lec, &leh, &les);
1818 /* Same physical / logical beginning? */
1819 if (cylinders <= 1024 && (pbc != lbc || pbh != lbh || pbs != lbs)) {
1820 printf(_("Partition %d has different physical/logical "
1821 "beginnings (non-Linux?):\n"), partition + 1);
1822 printf(_(" phys=(%d, %d, %d) "), pbc, pbh, pbs);
1823 printf(_("logical=(%d, %d, %d)\n"),lbc, lbh, lbs);
1826 /* Same physical / logical ending? */
1827 if (cylinders <= 1024 && (pec != lec || peh != leh || pes != les)) {
1828 printf(_("Partition %d has different physical/logical "
1829 "endings:\n"), partition + 1);
1830 printf(_(" phys=(%d, %d, %d) "), pec, peh, pes);
1831 printf(_("logical=(%d, %d, %d)\n"),lec, leh, les);
1834 /* Ending on cylinder boundary? */
1835 if (peh != (heads - 1) || pes != sectors) {
1836 printf(_("Partition %i does not end on cylinder boundary.\n"),
1842 list_disk_geometry(void)
1844 long long bytes = (total_number_of_sectors << 9);
1845 long megabytes = bytes/1000000;
1847 if (megabytes < 10000)
1848 printf(_("\nDisk %s: %ld MB, %lld bytes\n"),
1849 disk_device, megabytes, bytes);
1851 printf(_("\nDisk %s: %ld.%ld GB, %lld bytes\n"),
1852 disk_device, megabytes/1000, (megabytes/100)%10, bytes);
1853 printf(_("%d heads, %d sectors/track, %d cylinders"),
1854 heads, sectors, cylinders);
1855 if (units_per_sector == 1)
1856 printf(_(", total %llu sectors"),
1857 total_number_of_sectors / (sector_size/512));
1858 printf(_("\nUnits = %s of %d * %d = %d bytes\n\n"),
1860 units_per_sector, sector_size, units_per_sector * sector_size);
1864 * Check whether partition entries are ordered by their starting positions.
1865 * Return 0 if OK. Return i if partition i should have been earlier.
1866 * Two separate checks: primary and logical partitions.
1869 wrong_p_order(int *prev)
1871 const struct pte *pe;
1872 const struct partition *p;
1873 off_t last_p_start_pos = 0, p_start_pos;
1876 for (i = 0 ; i < partitions; i++) {
1879 last_p_start_pos = 0;
1882 if ((p = pe->part_table)->sys_ind) {
1883 p_start_pos = get_partition_start(pe);
1885 if (last_p_start_pos > p_start_pos) {
1891 last_p_start_pos = p_start_pos;
1898 #if ENABLE_FEATURE_FDISK_ADVANCED
1900 * Fix the chain of logicals.
1901 * extended_offset is unchanged, the set of sectors used is unchanged
1902 * The chain is sorted so that sectors increase, and so that
1903 * starting sectors increase.
1905 * After this it may still be that cfdisk doesnt like the table.
1906 * (This is because cfdisk considers expanded parts, from link to
1907 * end of partition, and these may still overlap.)
1909 * sfdisk /dev/hda > ohda; sfdisk /dev/hda < ohda
1913 fix_chain_of_logicals(void)
1915 int j, oj, ojj, sj, sjj;
1916 struct partition *pj,*pjj,tmp;
1918 /* Stage 1: sort sectors but leave sector of part 4 */
1919 /* (Its sector is the global extended_offset.) */
1921 for (j = 5; j < partitions-1; j++) {
1922 oj = ptes[j].offset;
1923 ojj = ptes[j+1].offset;
1925 ptes[j].offset = ojj;
1926 ptes[j+1].offset = oj;
1927 pj = ptes[j].part_table;
1928 set_start_sect(pj, get_start_sect(pj)+oj-ojj);
1929 pjj = ptes[j+1].part_table;
1930 set_start_sect(pjj, get_start_sect(pjj)+ojj-oj);
1931 set_start_sect(ptes[j-1].ext_pointer,
1932 ojj-extended_offset);
1933 set_start_sect(ptes[j].ext_pointer,
1934 oj-extended_offset);
1939 /* Stage 2: sort starting sectors */
1941 for (j = 4; j < partitions-1; j++) {
1942 pj = ptes[j].part_table;
1943 pjj = ptes[j+1].part_table;
1944 sj = get_start_sect(pj);
1945 sjj = get_start_sect(pjj);
1946 oj = ptes[j].offset;
1947 ojj = ptes[j+1].offset;
1948 if (oj+sj > ojj+sjj) {
1952 set_start_sect(pj, ojj+sjj-oj);
1953 set_start_sect(pjj, oj+sj-ojj);
1958 /* Probably something was changed */
1959 for (j = 4; j < partitions; j++)
1960 ptes[j].changed = 1;
1965 fix_partition_table_order(void)
1967 struct pte *pei, *pek;
1970 if (!wrong_p_order(NULL)) {
1971 printf(_("Nothing to do. Ordering is correct already.\n\n"));
1975 while ((i = wrong_p_order(&k)) != 0 && i < 4) {
1976 /* partition i should have come earlier, move it */
1977 /* We have to move data in the MBR */
1978 struct partition *pi, *pk, *pe, pbuf;
1982 pe = pei->ext_pointer;
1983 pei->ext_pointer = pek->ext_pointer;
1984 pek->ext_pointer = pe;
1986 pi = pei->part_table;
1987 pk = pek->part_table;
1989 memmove(&pbuf, pi, sizeof(struct partition));
1990 memmove(pi, pk, sizeof(struct partition));
1991 memmove(pk, &pbuf, sizeof(struct partition));
1993 pei->changed = pek->changed = 1;
1997 fix_chain_of_logicals();
2005 list_table(int xtra)
2007 const struct partition *p;
2011 sun_list_table(xtra);
2015 sgi_list_table(xtra);
2019 list_disk_geometry();
2022 xbsd_print_disklabel(xtra);
2026 /* Heuristic: we list partition 3 of /dev/foo as /dev/foo3,
2027 but if the device name ends in a digit, say /dev/foo1,
2028 then the partition is called /dev/foo1p3. */
2029 w = strlen(disk_device);
2030 if (w && isdigit(disk_device[w-1]))
2035 // 1 12345678901 12345678901 12345678901 12
2036 printf(_("%*s Boot Start End Blocks Id System\n"),
2039 for (i = 0; i < partitions; i++) {
2040 const struct pte *pe = &ptes[i];
2046 if (!p || is_cleared_partition(p))
2049 psects = get_nr_sects(p);
2053 if (sector_size < 1024) {
2054 pblocks /= (1024 / sector_size);
2055 podd = psects % (1024 / sector_size);
2057 if (sector_size > 1024)
2058 pblocks *= (sector_size / 1024);
2060 printf("%s %c %11llu %11llu %11llu%c %2x %s\n",
2061 partname(disk_device, i+1, w+2),
2062 !p->boot_ind ? ' ' : p->boot_ind == ACTIVE_FLAG /* boot flag */
2064 (unsigned long long) cround(get_partition_start(pe)), /* start */
2065 (unsigned long long) cround(get_partition_start(pe) + psects /* end */
2066 - (psects ? 1 : 0)),
2067 (unsigned long long) pblocks, podd ? '+' : ' ', /* odd flag on end */
2068 p->sys_ind, /* type id */
2069 partition_type(p->sys_ind)); /* type name */
2071 check_consistency(p, i);
2074 /* Is partition table in disk order? It need not be, but... */
2075 /* partition table entries are not checked for correct order if this
2076 is a sgi, sun or aix labeled disk... */
2077 if (LABEL_IS_DOS && wrong_p_order(NULL)) {
2079 printf(_("\nPartition table entries are not in disk order\n"));
2083 #if ENABLE_FEATURE_FDISK_ADVANCED
2085 x_list_table(int extend)
2087 const struct pte *pe;
2088 const struct partition *p;
2091 printf(_("\nDisk %s: %d heads, %d sectors, %d cylinders\n\n"),
2092 disk_device, heads, sectors, cylinders);
2093 printf(_("Nr AF Hd Sec Cyl Hd Sec Cyl Start Size ID\n"));
2094 for (i = 0 ; i < partitions; i++) {
2096 p = (extend ? pe->ext_pointer : pe->part_table);
2098 printf("%2d %02x%4d%4d%5d%4d%4d%5d%11u%11u %02x\n",
2099 i + 1, p->boot_ind, p->head,
2101 cylinder(p->sector, p->cyl), p->end_head,
2102 sector(p->end_sector),
2103 cylinder(p->end_sector, p->end_cyl),
2104 get_start_sect(p), get_nr_sects(p), p->sys_ind);
2106 check_consistency(p, i);
2112 #if ENABLE_FEATURE_FDISK_WRITABLE
2114 fill_bounds(off_t *first, off_t *last)
2117 const struct pte *pe = &ptes[0];
2118 const struct partition *p;
2120 for (i = 0; i < partitions; pe++,i++) {
2122 if (!p->sys_ind || IS_EXTENDED(p->sys_ind)) {
2123 first[i] = 0xffffffff;
2126 first[i] = get_partition_start(pe);
2127 last[i] = first[i] + get_nr_sects(p) - 1;
2133 check(int n, unsigned h, unsigned s, unsigned c, off_t start)
2135 off_t total, real_s, real_c;
2137 real_s = sector(s) - 1;
2138 real_c = cylinder(s, c);
2139 total = (real_c * sectors + real_s) * heads + h;
2141 printf(_("Warning: partition %d contains sector 0\n"), n);
2143 printf(_("Partition %d: head %d greater than maximum %d\n"),
2145 if (real_s >= sectors)
2146 printf(_("Partition %d: sector %d greater than "
2147 "maximum %d\n"), n, s, sectors);
2148 if (real_c >= cylinders)
2149 printf(_("Partitions %d: cylinder %llu greater than "
2150 "maximum %d\n"), n, (unsigned long long)real_c + 1, cylinders);
2151 if (cylinders <= 1024 && start != total)
2152 printf(_("Partition %d: previous sectors %llu disagrees with "
2153 "total %llu\n"), n, (unsigned long long)start, (unsigned long long)total);
2161 off_t first[partitions], last[partitions];
2162 struct partition *p;
2164 if (warn_geometry())
2176 fill_bounds(first, last);
2177 for (i = 0; i < partitions; i++) {
2178 struct pte *pe = &ptes[i];
2181 if (p->sys_ind && !IS_EXTENDED(p->sys_ind)) {
2182 check_consistency(p, i);
2183 if (get_partition_start(pe) < first[i])
2184 printf(_("Warning: bad start-of-data in "
2185 "partition %d\n"), i + 1);
2186 check(i + 1, p->end_head, p->end_sector, p->end_cyl,
2188 total += last[i] + 1 - first[i];
2189 for (j = 0; j < i; j++)
2190 if ((first[i] >= first[j] && first[i] <= last[j])
2191 || ((last[i] <= last[j] && last[i] >= first[j]))) {
2192 printf(_("Warning: partition %d overlaps "
2193 "partition %d.\n"), j + 1, i + 1);
2194 total += first[i] >= first[j] ?
2195 first[i] : first[j];
2196 total -= last[i] <= last[j] ?
2202 if (extended_offset) {
2203 struct pte *pex = &ptes[ext_index];
2204 off_t e_last = get_start_sect(pex->part_table) +
2205 get_nr_sects(pex->part_table) - 1;
2207 for (i = 4; i < partitions; i++) {
2209 p = ptes[i].part_table;
2211 if (i != 4 || i + 1 < partitions)
2212 printf(_("Warning: partition %d "
2213 "is empty\n"), i + 1);
2215 else if (first[i] < extended_offset ||
2217 printf(_("Logical partition %d not entirely in "
2218 "partition %d\n"), i + 1, ext_index + 1);
2222 if (total > heads * sectors * cylinders)
2223 printf(_("Total allocated sectors %d greater than the maximum "
2224 "%d\n"), total, heads * sectors * cylinders);
2225 else if ((total = heads * sectors * cylinders - total) != 0)
2226 printf(_("%d unallocated sectors\n"), total);
2230 add_partition(int n, int sys)
2232 char mesg[256]; /* 48 does not suffice in Japanese */
2233 int i, num_read = 0;
2234 struct partition *p = ptes[n].part_table;
2235 struct partition *q = ptes[ext_index].part_table;
2237 off_t start, stop = 0, limit, temp,
2238 first[partitions], last[partitions];
2240 if (p && p->sys_ind) {
2241 printf(_("Partition %d is already defined. Delete "
2242 "it before re-adding it.\n"), n + 1);
2245 fill_bounds(first, last);
2247 start = sector_offset;
2248 if (display_in_cyl_units || !total_number_of_sectors)
2249 llimit = heads * sectors * cylinders - 1;
2251 llimit = total_number_of_sectors - 1;
2253 if (limit != llimit)
2255 if (extended_offset) {
2256 first[ext_index] = extended_offset;
2257 last[ext_index] = get_start_sect(q) +
2258 get_nr_sects(q) - 1;
2261 start = extended_offset + sector_offset;
2262 limit = get_start_sect(q) + get_nr_sects(q) - 1;
2264 if (display_in_cyl_units)
2265 for (i = 0; i < partitions; i++)
2266 first[i] = (cround(first[i]) - 1) * units_per_sector;
2268 snprintf(mesg, sizeof(mesg), _("First %s"), str_units(SINGULAR));
2271 for (i = 0; i < partitions; i++) {
2274 if (start == ptes[i].offset)
2275 start += sector_offset;
2276 lastplusoff = last[i] + ((n < 4) ? 0 : sector_offset);
2277 if (start >= first[i] && start <= lastplusoff)
2278 start = lastplusoff + 1;
2282 if (start >= temp+units_per_sector && num_read) {
2283 printf(_("Sector %"OFF_FMT"d is already allocated\n"), temp);
2287 if (!num_read && start == temp) {
2290 saved_start = start;
2291 start = read_int(cround(saved_start), cround(saved_start), cround(limit),
2293 if (display_in_cyl_units) {
2294 start = (start - 1) * units_per_sector;
2295 if (start < saved_start) start = saved_start;
2299 } while (start != temp || !num_read);
2300 if (n > 4) { /* NOT for fifth partition */
2301 struct pte *pe = &ptes[n];
2303 pe->offset = start - sector_offset;
2304 if (pe->offset == extended_offset) { /* must be corrected */
2306 if (sector_offset == 1)
2311 for (i = 0; i < partitions; i++) {
2312 struct pte *pe = &ptes[i];
2314 if (start < pe->offset && limit >= pe->offset)
2315 limit = pe->offset - 1;
2316 if (start < first[i] && limit >= first[i])
2317 limit = first[i] - 1;
2319 if (start > limit) {
2320 printf(_("No free sectors available\n"));
2325 if (cround(start) == cround(limit)) {
2328 snprintf(mesg, sizeof(mesg),
2329 _("Last %s or +size or +sizeM or +sizeK"),
2330 str_units(SINGULAR));
2331 stop = read_int(cround(start), cround(limit), cround(limit),
2332 cround(start), mesg);
2333 if (display_in_cyl_units) {
2334 stop = stop * units_per_sector - 1;
2340 set_partition(n, 0, start, stop, sys);
2342 set_partition(n - 1, 1, ptes[n].offset, stop, EXTENDED);
2344 if (IS_EXTENDED(sys)) {
2345 struct pte *pe4 = &ptes[4];
2346 struct pte *pen = &ptes[n];
2349 pen->ext_pointer = p;
2350 pe4->offset = extended_offset = start;
2351 pe4->sectorbuffer = xzalloc(sector_size);
2352 pe4->part_table = pt_offset(pe4->sectorbuffer, 0);
2353 pe4->ext_pointer = pe4->part_table + 1;
2362 if (partitions > 5 || ptes[4].part_table->sys_ind) {
2363 struct pte *pe = &ptes[partitions];
2365 pe->sectorbuffer = xzalloc(sector_size);
2366 pe->part_table = pt_offset(pe->sectorbuffer, 0);
2367 pe->ext_pointer = pe->part_table + 1;
2372 add_partition(partitions - 1, LINUX_NATIVE);
2378 int i, free_primary = 0;
2380 if (warn_geometry())
2384 add_sun_partition(get_partition(0, partitions), LINUX_NATIVE);
2388 sgi_add_partition(get_partition(0, partitions), LINUX_NATIVE);
2392 printf(_("\tSorry - this fdisk cannot handle AIX disk labels."
2393 "\n\tIf you want to add DOS-type partitions, create"
2394 "\n\ta new empty DOS partition table first. (Use o.)"
2396 "This will destroy the present disk contents.\n"));
2400 for (i = 0; i < 4; i++)
2401 free_primary += !ptes[i].part_table->sys_ind;
2403 if (!free_primary && partitions >= MAXIMUM_PARTS) {
2404 printf(_("The maximum number of partitions has been created\n"));
2408 if (!free_primary) {
2409 if (extended_offset)
2412 printf(_("You must delete some partition and add "
2413 "an extended partition first\n"));
2415 char c, line[LINE_LENGTH];
2416 snprintf(line, sizeof(line), "%s\n %s\n p primary "
2417 "partition (1-4)\n",
2418 "Command action", (extended_offset ?
2419 "l logical (5 or over)" : "e extended"));
2421 c = read_nonempty(line);
2422 if (c == 'p' || c == 'P') {
2423 i = get_nonexisting_partition(0, 4);
2425 add_partition(i, LINUX_NATIVE);
2428 else if (c == 'l' && extended_offset) {
2432 else if (c == 'e' && !extended_offset) {
2433 i = get_nonexisting_partition(0, 4);
2435 add_partition(i, EXTENDED);
2439 printf(_("Invalid partition number "
2440 "for type '%c'\n"), c);
2451 for (i = 0; i < 3; i++)
2452 if (ptes[i].changed)
2453 ptes[3].changed = 1;
2454 for (i = 3; i < partitions; i++) {
2455 struct pte *pe = &ptes[i];
2458 write_part_table_flag(pe->sectorbuffer);
2459 write_sector(pe->offset, pe->sectorbuffer);
2463 else if (LABEL_IS_SGI) {
2464 /* no test on change? the printf below might be mistaken */
2467 else if (LABEL_IS_SUN) {
2470 for (i = 0; i < 8; i++)
2471 if (ptes[i].changed)
2477 printf(_("The partition table has been altered!\n\n"));
2478 reread_partition_table(1);
2482 reread_partition_table(int leave)
2486 printf(_("Calling ioctl() to re-read partition table\n"));
2488 sleep(2); /* Huh? */
2489 i = ioctl(fd, BLKRRPART);
2492 /* some kernel versions (1.2.x) seem to have trouble
2493 rereading the partition table, but if asked to do it
2494 twice, the second time works. - biro@yggdrasil.com */
2497 i = ioctl(fd, BLKRRPART);
2502 bb_perror_msg("WARNING: rereading partition table "
2503 "failed, kernel still uses old table");
2509 _("\nWARNING: If you have created or modified any DOS 6.x\n"
2510 "partitions, please see the fdisk manual page for additional\n"
2515 if (ENABLE_FEATURE_CLEAN_UP)
2520 #endif /* CONFIG_FEATURE_FDISK_WRITABLE */
2522 #if ENABLE_FEATURE_FDISK_ADVANCED
2523 #define MAX_PER_LINE 16
2525 print_buffer(char *pbuffer)
2529 for (i = 0, l = 0; i < sector_size; i++, l++) {
2531 printf("0x%03X:", i);
2532 printf(" %02X", (unsigned char) pbuffer[i]);
2533 if (l == MAX_PER_LINE - 1) {
2548 printf(_("Device: %s\n"), disk_device);
2549 if (LABEL_IS_SGI || LABEL_IS_SUN)
2550 print_buffer(MBRbuffer);
2552 for (i = 3; i < partitions; i++)
2553 print_buffer(ptes[i].sectorbuffer);
2560 struct pte *pe = &ptes[i];
2561 struct partition *p = pe->part_table;
2564 if (warn_geometry())
2566 if (!p->sys_ind || !get_nr_sects(p) || IS_EXTENDED(p->sys_ind)) {
2567 printf(_("Partition %d has no data area\n"), i + 1);
2570 first = get_partition_start(pe);
2571 new = read_int(first, first, first + get_nr_sects(p) - 1, first,
2572 _("New beginning of data")) - pe->offset;
2574 if (new != get_nr_sects(p)) {
2575 first = get_nr_sects(p) + get_start_sect(p) - new;
2576 set_nr_sects(p, first);
2577 set_start_sect(p, new);
2589 c = tolower(read_nonempty(_("Expert command (m for help): ")));
2597 move_begin(get_partition(0, partitions));
2600 user_cylinders = cylinders =
2601 read_int(1, cylinders, 1048576, 0,
2602 _("Number of cylinders"));
2604 sun_set_ncyl(cylinders);
2614 else if (LABEL_IS_SUN)
2616 else if (LABEL_IS_DOS)
2621 fix_partition_table_order();
2624 #if ENABLE_FEATURE_SGI_LABEL
2629 user_heads = heads = read_int(1, heads, 256, 0,
2630 _("Number of heads"));
2654 user_sectors = sectors = read_int(1, sectors, 63, 0,
2655 _("Number of sectors"));
2656 if (dos_compatible_flag) {
2657 sector_offset = sectors;
2658 printf(_("Warning: setting sector offset for DOS "
2667 write_table(); /* does not return */
2671 sun_set_pcylcount();
2678 #endif /* ADVANCED mode */
2681 is_ide_cdrom_or_tape(const char *device)
2685 struct stat statbuf;
2688 /* No device was given explicitly, and we are trying some
2689 likely things. But opening /dev/hdc may produce errors like
2690 "hdc: tray open or drive not ready"
2691 if it happens to be a CD-ROM drive. It even happens that
2692 the process hangs on the attempt to read a music CD.
2693 So try to be careful. This only works since 2.1.73. */
2695 if (strncmp("/dev/hd", device, 7))
2698 snprintf(buf, sizeof(buf), "/proc/ide/%s/media", device+5);
2699 procf = fopen(buf, "r");
2700 if (procf != NULL && fgets(buf, sizeof(buf), procf))
2701 is_ide = (!strncmp(buf, "cdrom", 5) ||
2702 !strncmp(buf, "tape", 4));
2704 /* Now when this proc file does not exist, skip the
2705 device when it is read-only. */
2706 if (stat(device, &statbuf) == 0)
2707 is_ide = ((statbuf.st_mode & 0222) == 0);
2716 try(const char *device, int user_specified)
2720 disk_device = device;
2721 if (setjmp(listingbuf))
2723 if (!user_specified)
2724 if (is_ide_cdrom_or_tape(device))
2726 fd = open(disk_device, type_open);
2728 gb = get_boot(try_only);
2729 if (gb > 0) { /* I/O error */
2731 } else if (gb < 0) { /* no DOS signature */
2732 list_disk_geometry();
2736 #if ENABLE_FEATURE_OSF_LABEL
2737 if (btrydev(device) < 0)
2739 printf(_("Disk %s doesn't contain a valid "
2740 "partition table\n"), device);
2745 #if ENABLE_FEATURE_FDISK_WRITABLE
2746 if (!LABEL_IS_SUN && partitions > 4){
2747 delete_partition(ext_index);
2752 /* Ignore other errors, since we try IDE
2753 and SCSI hard disks which may not be
2754 installed on the system. */
2755 if (errno == EACCES) {
2756 printf(_("Cannot open %s\n"), device);
2762 /* for fdisk -l: try all things in /proc/partitions
2763 that look like a partition name (do not end in a digit) */
2768 char line[100], ptname[100], devname[120], *s;
2771 procpt = fopen_or_warn("/proc/partitions", "r");
2773 while (fgets(line, sizeof(line), procpt)) {
2774 if (sscanf(line, " %d %d %d %[^\n ]",
2775 &ma, &mi, &sz, ptname) != 4)
2777 for (s = ptname; *s; s++);
2780 sprintf(devname, "/dev/%s", ptname);
2783 #if ENABLE_FEATURE_CLEAN_UP
2788 #if ENABLE_FEATURE_FDISK_WRITABLE
2790 unknown_command(int c)
2792 printf(_("%c: unknown command\n"), c);
2796 int fdisk_main(int argc, char **argv)
2798 char *str_b, *str_C, *str_H, *str_S;
2802 * fdisk -l [-b sectorsize] [-u] device ...
2803 * fdisk -s [partition] ...
2804 * fdisk [-b sectorsize] [-u] device
2806 * Options -C, -H, -S set the geometry.
2815 OPT_s = (1 << 6) * ENABLE_FEATURE_FDISK_BLKSIZE,
2817 opt = getopt32(argc, argv, "b:C:H:lS:u" USE_FEATURE_FDISK_BLKSIZE("s"),
2818 &str_b, &str_C, &str_H, &str_S);
2821 if (opt & OPT_b) { // -b
2822 /* Ugly: this sector size is really per device,
2823 so cannot be combined with multiple disks,
2824 and the same goes for the C/H/S options.
2826 sector_size = xatoi_u(str_b);
2827 if (sector_size != 512 && sector_size != 1024 &&
2828 sector_size != 2048)
2831 user_set_sector_size = 1;
2833 if (opt & OPT_C) user_cylinders = xatoi_u(str_C); // -C
2834 if (opt & OPT_H) { // -H
2835 user_heads = xatoi_u(str_H);
2836 if (user_heads <= 0 || user_heads >= 256)
2839 //if (opt & OPT_l) // -l
2840 if (opt & OPT_S) { // -S
2841 user_sectors = xatoi_u(str_S);
2842 if (user_sectors <= 0 || user_sectors >= 64)
2845 if (opt & OPT_u) display_in_cyl_units = 0; // -u
2846 //if (opt & OPT_s) // -s
2848 if (user_set_sector_size && argc != 1)
2849 printf(_("Warning: the -b (set sector size) option should"
2850 " be used with one specified device\n"));
2852 #if ENABLE_FEATURE_FDISK_WRITABLE
2856 type_open = O_RDONLY;
2859 #if defined(__GNUC__)
2860 /* avoid gcc warning:
2861 variable `k' might be clobbered by `longjmp' */
2865 for (k = 0; k < argc; k++)
2868 /* we no longer have default device names */
2869 /* but, we can use /proc/partitions instead */
2873 #if ENABLE_FEATURE_FDISK_WRITABLE
2877 #if ENABLE_FEATURE_FDISK_BLKSIZE
2883 type_open = O_RDONLY;
2888 for (j = 0; j < argc; j++) {
2889 disk_device = argv[j];
2890 fd = open(disk_device, type_open);
2892 fdisk_fatal(unable_to_open);
2893 if (ioctl(fd, BLKGETSIZE, &size))
2894 fdisk_fatal(ioctl_error);
2897 printf("%ld\n", size/2);
2899 printf("%s: %ld\n", argv[j], size/2);
2905 #if ENABLE_FEATURE_FDISK_WRITABLE
2909 disk_device = argv[0];
2913 /* OSF label, and no DOS label */
2914 printf(_("Detected an OSF/1 disklabel on %s, entering "
2915 "disklabel mode.\n"), disk_device);
2917 /*Why do we do this? It seems to be counter-intuitive*/
2918 current_label_type = label_dos;
2919 /* If we return we may want to make an empty DOS label? */
2925 c = tolower(read_nonempty(_("Command (m for help): ")));
2929 toggle_active(get_partition(1, partitions));
2930 else if (LABEL_IS_SUN)
2931 toggle_sunflags(get_partition(1, partitions),
2933 else if (LABEL_IS_SGI)
2934 sgi_set_bootpartition(
2935 get_partition(1, partitions));
2941 printf(_("\nThe current boot file is: %s\n"),
2942 sgi_get_bootfile());
2943 if (read_maybe_empty(_("Please enter the name of the "
2944 "new boot file: ")) == '\n')
2945 printf(_("Boot file unchanged\n"));
2947 sgi_set_bootfile(line_ptr);
2949 #if ENABLE_FEATURE_OSF_LABEL
2956 toggle_dos_compatibility_flag();
2957 else if (LABEL_IS_SUN)
2958 toggle_sunflags(get_partition(1, partitions),
2960 else if (LABEL_IS_SGI)
2961 sgi_set_swappartition(
2962 get_partition(1, partitions));
2969 /* If sgi_label then don't use get_existing_partition,
2970 let the user select a partition, since
2971 get_existing_partition() only works for Linux-like
2973 if (!LABEL_IS_SGI) {
2974 j = get_existing_partition(1, partitions);
2976 j = get_partition(1, partitions);
2979 delete_partition(j);
2988 list_types(get_sys_types());
3007 #if ENABLE_FEATURE_SUN_LABEL
3021 write_table(); /* does not return */
3023 #if ENABLE_FEATURE_FDISK_ADVANCED
3026 printf(_("\n\tSorry, no experts menu for SGI "
3027 "partition tables available.\n\n"));
3038 #endif /* CONFIG_FEATURE_FDISK_WRITABLE */