3 # Disabling features we do not match exactly:
4 system_mke2fs='/sbin/mke2fs -O ^resize_inode'
5 bbox_mke2fs='./busybox mke2fs'
7 gen_image() { # params: mke2fs_invocation image_name
9 dd seek=$((kilobytes-1)) bs=1K count=1 </dev/zero of=$2 >/dev/null 2>&1 || exit 1
10 $1 -F $2 $kilobytes >$2.raw_out 2>&1 || return 1
12 | grep -v '^mke2fs [0-9]*\.[0-9]*\.[0-9]* ' \
13 | grep -v '^Maximum filesystem' \
14 | grep -v '^Writing inode tables' \
15 | grep -v '^Writing superblocks and filesystem accounting information' \
16 | grep -v '^This filesystem will be automatically checked every' \
17 | grep -v '^180 days, whichever comes first' \
18 | sed 's/blocks* unused./blocks unused/' \
19 | sed 's/block groups*/block groups/' \
21 | sed 's/blocks (.*%) reserved/blocks reserved/' \
27 echo Testing $kilobytes
29 gen_image "$system_mke2fs" image_std || return 1
30 gen_image "$bbox_mke2fs" image_bb || return 1
32 diff -ua image_bb.out image_std.out >image.out.diff || {
37 e2fsck -f -n image_bb >image_bb_e2fsck.out 2>&1 || {
38 echo "e2fsck error on image_bb"
39 cat image_bb_e2fsck.out
46 # kilobytes=60 is the minimal allowed size
51 test $kilobytes = 200 && break
54 # Transition from one block group to two
55 # fails in [8378..8410] range unless -O ^resize_inode
56 kilobytes=$((1 * 8*1024 - 50))
60 test $kilobytes = $((1 * 8*1024 + 300)) && break
63 # Transition from 2 block groups to 3
65 kilobytes=$((2 * 8*1024 - 50))
69 test $kilobytes = $((2 * 8*1024 + 400)) && break
72 # Transition from 3 block groups to 4
73 # fails in [24825..24922] range unless -O ^resize_inode
74 kilobytes=$((3 * 8*1024 - 50))
78 test $kilobytes = $((3 * 8*1024 + 500)) && break
81 # Transition from 4 block groups to 5
83 kilobytes=$((4 * 8*1024 - 50))
87 test $kilobytes = $((4 * 8*1024 + 600)) && break
90 # Transition from 5 block groups to 6
91 # fails in [41230..41391] range unless -O ^resize_inode
92 kilobytes=$((5 * 8*1024 - 50))
96 test $kilobytes = $((5 * 8*1024 + 700)) && break
102 kilobytes=$(( (RANDOM*RANDOM) % 5000000 + 60))
103 test_mke2fs || exit 1