2022-05-13 20:16:34 +08:00
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These images contain various forms of corrupted filesystem which
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e2fsck will correct. They are used as a regression test for e2fsck.
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The test_script program will automatically run e2fsck against the
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filesystem images. It will run them two times, and display the exit
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status for each run. The meaning of the exit status codes are as
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follows:
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0 No filesystem errors were detected
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1 Filesystem errors detected, but corrected
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2 System should be rebooted
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4 Filesystem errors left uncorrected
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8 Operational error (generally means internal error,
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or filesystem error that the e2fsck was not
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prepared to deal with)
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16 Usage or syntax error
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During the regression test, the first exit code should be 1, and the
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second exit code should be 0. In other words, all (with one
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exception) of the test filesystems in this directory have some sort of
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filesystem corruption, which e2fsck should fix on the first pass.
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After the first pass, e2fsck should leave a fully consistent
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filesystem with no detectable errors found in the second pass. The
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exception is the okgroup.img filesystem, which contains no errors, and
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so both exit codes should be 0.
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NOTE: It appears that at least some versions of the original e2fsck do
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not exit with an exit status code of 1 after correcting filesystem
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errors. So if you modify the test_script to try running these
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filesystems against the original e2fsck, you will have to inspect the
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test_script.log file manually.
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--------------------------------------------------------------
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2024-03-26 10:09:11 +08:00
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Here's a one-line descriptions of the various test images in this
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2022-05-13 20:16:34 +08:00
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directory:
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baddir.img Filesystem with a corrupted directory
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badbblocks.img Filesystem with illegal blocks in the bad block inode.
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badinode.img Filesystem with various different corrupted inode
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entries.
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badlkcnt.img Filesystem with deleted files with non-zero link count
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badroot.img Filesystem with a file for a root directory
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badtable.img Filesystem with blocks shared between the bitmaps and
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inode table blocks and the bad block inode
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bbfile.img Filesystem with files containing bad blocks
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bitmaps.img Filesystem with corrupted inode and block bitmaps
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dirlink.img Filesystem with a hard link to a directory
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dup.img Filesystem with blocks claimed by two different files
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dup2.img Filesystem with blocks claimed by three different files
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dupfsblks.img Filesystem with blocks claimed by a file and
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inode/block bitmaps and inode tables
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dupsuper.img Filesystem with blocks claimed by a file and
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the superblock / group descriptors
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end-bitmap.img Filesystem with corruption at the end of the block
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bitmap
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expand.img Tests e2fsck's ability to expand lost+found if
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necessary
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lpf.img Filesystem with disconnected files and no /lost+found
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directory
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mke2fs2b.img Filesystem with corruption similar to that
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created by mke2fs version 0.2b
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noroot.img Filesystem with a deleted root directory
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okgroup.img Filesystem that's exactly 8193 blocks long
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(otherwise OK)
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overfsblks.img Filesystem with overlapping inode and block bitmaps
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symlinks.img Filesystem with bad symlink sizes
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