5 mtdpart="$(find_mtd_part $partname)"
7 rom=$(awk '/squashfs/ {print $2}' /proc/mounts)
8 jffs=$(awk '/jffs2/ {print $2}' /proc/mounts)
10 dupe() { # <new_root> <old_root>
12 echo -n "creating directories... "
16 echo "./dev ./jffs ./mnt ./proc ./tmp"
17 # xdev skips mounted directories
22 echo -n "setting up symlinks... "
23 for file in $(cd $2; find . -xdev -type f;); do
25 ./rom/note) ;; #nothing
27 ./usr/lib/opkg/info/*) cp -af $2/$file $file;;
28 *) ln -sf /rom/${file#./*} $file;;
31 for file in $(cd $2; find . -xdev -type l;); do
32 cp -af $2/${file#./*} $file
37 pivot() { # <new_root> <old_root>
38 mount -o move /proc $1/proc && \
39 pivot_root $1 $1$2 && {
40 mount -o move $2/dev /dev
41 mount -o move $2/tmp /tmp
42 mount -o move $2/sys /sys 2>&-
43 mount -o move $2/jffs /jffs 2>&-
48 fopivot() { # <rw_root> <ro_root> <dupe?>
51 mount -t mini_fo -o base=/,sto=$1 "mini_fo:$1" /mnt 2>&- && root=/mnt
54 mount | grep "on $1 type" 2>&- 1>&- || mount -o bind $1 $1
63 fopivot /tmp/root /rom 1
66 # invoked as an executable
67 [ "${0##*/}" = "firstboot" ] && {
69 [ -z "$mtdpart" ] && {
70 echo "MTD partition not found."
75 echo "You do not have a squashfs partition; aborting"
76 echo "(firstboot cannot be run on jffs2 based firmwares)"
80 [ "$1" = "switch2jffs" ] && {
81 mount "$mtdpart" /rom/jffs -t jffs2 || exit
83 # try to avoid fs changing while copying
84 mount -o remount,ro none / 2>&-
86 # copy ramoverlay to jffs2
87 echo -n "copying files ... "
88 cp -a /tmp/root/* /rom/jffs 2>&-
91 # switch back to squashfs (temporarily)
92 # and park the ramdisk ontop of /tmp/root
94 mount -o move /mnt /tmp/root
96 # /jffs is the overlay
97 # /rom is the readonly
100 # try to get rid of /tmp/root
101 # this will almost always fail
102 umount /tmp/root 2>&-
107 # script run manually
108 [ \! -z "$jffs" ] && {
109 echo "firstboot has already been run"
110 echo "jffs2 partition is mounted, only resetting files"
111 grep mini_fo /proc/filesystems >&-
117 mount -o remount $jffs / 2>&-
122 mtd erase "$partname"
123 mount "$mtdpart" /jffs -t jffs2