E2fsck could to do more damage to a filesystem by trying to relocate
inode tables due to corrupted block group descriptors, and the
relocation could seriously damage the filesystem.
This patch enhances ext2fs_check_desk() so it detects more
self-inconsistent block group descriptors, including the cases where
e2sck might be tempted to relocate the inode table, and reports the
block group descriptors as invalid; this will cause e2fsck to attempt
to use the backup superblocks, which hopefully have not been trashed.
Addresses-Sourceforge-Bug: #1840291
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
When calculating the number reserved blocks, use floating point for
better accuracy, since for big filesystems it really makes a
difference. In addition, mke2fs and tune2fs accepts a floating point
number from the user, so they should provide that level of accuracy.
Addresses-Debian-Bug: #452639
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
With the new mke2fs changes the output of the
command differs if we run mke2fs on a device that
already have the file system. So erase the file system
before running mke2fs so that output remain as expected.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
The combination of meta_bg and resize_inode leads to a corrupt
filesystem, and it's not really clear it makes any logical sense.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This simplifies the code, and using the uninit_bg with the inode table
lazily initialized is just as good.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Make dumpe2fs and debugfs print out the s_min_extra_isize and
s_wanted_extra_isize fields from the superblock.
Update tests expect files as appropriate.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Allow the old name of uninit_groups when converting feature names for
backwards compatibility for scripts running mke2fs and tune2fs.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Provide mke2fs with a much more sophisticated system for controlling
configuration parameters of a newly created filesystem based on a
split filesystem and usage type system. The -t option to mke2fs was a
deprecated alias to -c; it now specifies a filesystem type (ext2,
ext3, ext4, etc.), while the -T option can now be a comma separated
usage list.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
The m_no_opt test has been silently failing since the addition of
mke2fs.conf, since it was trying to use resize_inode on a non-sparse
filesystem. Fix it so it works correctly.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Split the m_lazy testcase into two tests - one that has resize enabled,
and one that does not. There were previously problems with lazy+resize
because the resize feature consumed blocks in some of the groups.
Signed-off-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Never set the UNINIT_BLOCKS flag for the last group since the kernel
doesn't handle the case graefully if there is a full set of blocks in
each blockgroup marked UNINIT_BLOCKS. The kernel should be fixed up,
but in the meantime this avoids hitting the problem, and is more
consistent with lazy_bg not marking the last group UNINIT.
Signed-off-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Add test case to test for uninit block groups.
Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
Signed-off-by: Andreas Dilger <adilger@clusterfs.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Add test case for lazy bg feature.
Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
Signed-off-by: Andreas Dilger <adilger@clusterfs.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This patch has all the necesary pieces to open and fix filesystems created
with the uninit block group feature.
Signed-off-by: Jose R. Santos <jrs@us.ibm.com>
Signed-off-by: Andreas Dilger <adilger@clusterfs.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Change the prompt so it is clear to the user that e2fsck will be
clearing the htree information, not the directory inode itself, when
the htree information has proven to be corrupt.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
If a directory's i_size is bigger than the number of blocks, don't try
to allocate extra empty blocks to the end of the directory; there's no
real point to do that. Also, if a directory's i_size is not a
multiple of the blocksize, flag that as a mistake so it can be fixed.
This more elegantly addresses the problem which was found on Bas van
Schaik's filesystem.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
The image contains an inode past the resize point with an inline xattr
value of "propervalue". It also contains deleted inodes which had the
xattr value "oldvalue".
When resize2fs moves the inode, it should copy the xattr as well, so
that post-resize we see "propervalue" not "oldvalue".
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Since the test_script driver uses [A-Za-z], we need to set the locale
so we don't get bitten on locals where the sort order might be
different.
Addresses-Sourceforge-Bug: #1890526
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Since recent kernels have a tendency to set this feature willy-nilly,
let's just enable by default. It's only very old kernels that don't
support it any more.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This makes it easier to upgrade to ext4 in the future, and it speeds
up extended attributes handling --- important on SELinux systems!
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Older e2fsck's would crash; e2fsck should now automatically retry
using the backup superblock if it is present.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
The resize2fs tests, r_move_itable and r_resize_inode, were not
deleting the test.img tmpfile after completing the test.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
E2fsck currently only retries with the backup superblock if the
primary superblock is missing (e.g., overwritten with garbage). If
the superblock is just corrupted enough that it looks like ext2/3/4
superblock, but it is corrupt enough that ext2fs_open2() returns an
error, e2fsck stops without retrying. Let's fix this oversight.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
The test in ext2fs_check_desc() is off by one; if the inode table
goes all the way to the last block of the block group, it will
falsely assert that it has extended past it. The last block
of a range is start + len -1, not start + len.
You can create (valid) filesystems that will cause e2fsck to complain
via one of the following mkfs commands:
mkfs.ext3 -F -b 1024 /dev/sdb1 2046000000
mke2fs -j -F -b 4096 -m 0 -N 5217280 /mnt/test/fsfile2 327680
mkfs.ext2 -F -b 1024 -m 0 -g 256 -N 3744 fsfile 1024
Addresses-Red-Hat-Bugzilla: #214765
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
For some odd geometries*, mkfs will try to allocate inode tables off
the end of the block group and fail, rather than warning that too
many inodes have been requested.
This is because when ext2fs_initialize calculates metadata overhead,
it is only adding in group descriptor blocks and the superblock
if the *last* bg contains them - but the first bg also has all of
the various metadata bits taking up space.
We need to calculate the overhead both for the first block group and
the last block groups separately, since the two different tests need
to know what the overheads are for those two cases, which may be
different.
*for example "mke2fs -b 1024 -m 0 -g 256 -N 3745 fsfile 1024"
(Note, the test here is a little funky; the expected output is
actually a mkfs failure - but a proper failure instead of the
allocator catching the problem at the last minute)
Addresses-Red-Hat-Bugzilla: #241767
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Recently, one of our customers found this message in pass2 of e2fsck
while doing some regression testing:
"Entry '4, 0x695a, 0x81ff, 0x0040, 0x8320, 0xa192, 0x0021' in ??? (136554) has
rec_len of 14200, should be 26908."
Both the displayed rec_len and the "should be" value are bogus. The
reason is that salvage_directory sets a offset beyond blocksize
leading to bogus messages.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
LC_ALL is the "high priority" environment variable that overrides all
others, where as LANG is the lowest priorty environment variable. If
LC_ALL is set, it doesn't matter whether LANG, LANGUAGE, LC_COLLATE,
LC_MESSAGES, and the all the rest are set. This will assure that the
locale when running the test suites is the "C" locale.
Obviates Gentoo patch: e2fsprogs-1.38-tests-locale.patch
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
If the journal had been removed because it was corrupt, the
E2F_FLAG_JOURNAL_INODE flag will be set. If this flag is set, then
recreate the filesystem after checking the filesystem.
Signed-off-by: Kalpak Shah <kalpak@clusterfs.com>
Signed-off-by: Andreas Dilger <adilger@clusterfs.com>
I think this is a small buglet in e2fsck: if a file has multiple hard
links, e2fsck pass1c search_dirent_proc() doesn't maintain its count
properly and may return DIRENT_ABORT before it has found containing
directories for all inodes sharing blocks.
Signed-off-by: Jim Garlick <garlick@llnl.gov>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
When patching and unpatching quilt files, empty directories get left
behind in the tests/ directory. Ignore them to avoid false test
failures.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This is probably only useful in artificial test cases, but it will be
useful if we ever do the "inodes in directory" idea for ext4.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
If there is an orphaned inode whose '..' entry is pointing at a special
file, the filetype of the '..' entry will set to the type of the special
file. When the orphaned directory is reconnected to /lost+found, the
filetype of the '..' field is not reset to EXT2_FT_DIR, so a second
e2fsck is required to repair the filesystem.
We address this situation by setting the filetype of '..' when we
reconnect the inode to /lost+found.
Addresses Lustre Bug: #11645
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This is not yet ready to be used yet, but add it into the tree so that
future patches don't have to deal with manually adding this binary
image file into the tree.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
The e2fsprogs and kernel implementation of directory hash tree has a
bug which causes the implementation to be dependent on whether
characters are signed or unsigned. Platforms such as the PowerPC,
Arm, and S/390 have signed characters by default, which means that
hash directories on those systems are incompatible with hash
directories on other systems, such as the x86.
To fix this we add a new flags field to the superblock, and define two
new bits in that field to indicate whether or not the directory should
be signed or unsigned. If the bits are not set, e2fsck and fixed
kernels will set them to the signed/unsigned value of the currently
running platform, and then respect those bits when calculating the
directory hash. This allows compatibility with current filesystems,
as well as allowing cross-architectural compatibility.
Addresses Debian Bug: #389772
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
- EXT4_FEATURE_RO_COMPAT_HUGE_FILE (0x0008) - change i_blocks to be
in units of s_blocksize units instead of 512-byte sectors, use
l_i_frag and l_i_fsize as i_blocks_hi (could also be part of 64BIT).
E2fsck and debugfs changed to support i_blocks_hi instead of l_i_frag and
l_i_fsize.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Create new ext2fs library inline functions in order to calculate
the starting and ending blocks in a block group.
Signed-off-by: Eric Sandeen <esandeen@redhat.com>
When allocating space for the RAID filesystems with the stride parameter,
place each portion of the group's inode table right up after the superblock
(if present) in order to minimize fragmentation of the freespace.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Also, use this environtment variable to make sure that a local
/etc/e2fsck.conf file will not interfere with the regression test
suite.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Detect if the superblock's last mount field or last write field is in
the future, and offer to fix if so. (Addresses Debian Bug #327580)
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Add the --valgrind option to the tests/test_script which allows us to
run the e2fsprogs regression test suite under valgrind.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This was actually caused by two bugs. The first bug is that if the
inode has been fully fixed up, the code will attempt to remove the
inode from the inode_bad_map without checking to see if this bitmap is
present. Since it is cleared at the end of pass 2, if
e2fsck_process_bad_inode is called in pass 4 (as it is for
disconnected inodes), this would result in a core dump.
The first bug was mostly hidden by a second bug, which caused
e2fsck_process_bad_inode() to consider all inodes without an extended
attribute to be not fixed.
Note: This bug was introduced in e2fsprogs 1.36.
(Addresses Debian Bug: #316736)
easier to understand (sorry, translators).
Add new @m (multiply-claimed) and @n (invalid) expansions for e2fsck
problem descriptions.
Add Dutch translation, and update French translation.
Add an explanation of how the @-expansion and %-exapansion works in
e2fsck/problem.c to make life easier for the translators.
Synchronize and update po files.
f_swapfs, f_move_itable, f_resize_inode, test_config:
Allow the diff options to be set in test_config so that
diff -u can be used on platforms that have it. (To be
done: checking whether diff can support -u in the
configure script.)
as well as the filesystem-wide inode and block free counts. If any of the
free counts is too large, force a full filesystem check. (Addresses
Debian Bug #291571)
for compatibility with FreeBSD. In $DEBUGFS commands, move the
-R arg argument first so that systems with non-GNU getopt()
can see the request argument (they would otherwise stop
parsing at the first non-option argument).
need to create a lost+found directory. This may
invalidate our pointer to the directory information, so we
must look it up again after calling
e2fsck_reconnect_file(). (Addresses Debian bug #219640).
m_raid_opt: New test case to test raid striping
m_large_file: Fix description
run_e2fsck, run_mke2fs, filter_dumpe2fs: Add dumpe2fs output to
the test output for comparison. Add support for
compressed expect scripts.
Mke2fs has been modified to honor the MKE2FS_SKIP_PROGRESS,
MKE2FS_DEVICE_SECTSIZE, and MKE2FS_SKIP_CHECK_MSG in order
facilitate the regression testing.
superblock. E2fsck will automatically save the journal information
in the superblock if it is not there already, and will use it if the
journal inode appears to be corrupted. ext2fs_add_journal_inode()
will also save the backup information, so that new filesystems
created by mke2fs and filesystems that have journals added via
tune2fs will also have journal location written to the superblock as
well. Debugfs's logdump command has been enhanced so that it can
use the journal information in the superblock.
The debugfs man page has been improved to more fully describe the
logdump command.
Added two new functions, ext2fs_file_open2() and
ext2fs_inode_io_intern2() which take a pointer to an inode structure;
this is needed so that e2fsck and debugfs can synthesize a
fake journal inode and use it to access the journal.
f_salveage_dir: Remove HTREE flag from the test image's
superblock. (It is not needed).
f_h_reindex: Skip this test of the htree is not enabled
f_dup_de: If htree is not enabled, clear the htree flag, and use
alternate expect scripts for the test.
Fix typo's in README.subset
Change debian control file so it doesn't bomb out if the EVMS FSIM
is not there, since it is not built on the Hurd. Resolves Debian
bug #189687.
inode counters from the block group specific counters
quietly. This is needed for an experimental patch which
eliminates locking the entire filesystem when allocating
blocks or inodes; if the filesystem is not unmounted
cleanly, the global counts may not be accurate.
Disable certain tests that depend on the byteswapping functions
being present so that "make check" succeeds even if --disable-swapfs
is passed to the configure script.
Add additional checks to HTREE directories. We now check the count
and limit fields in the htree header, as well as assuring that the
hash table in each interior node is in ascending order. We also
check to make sure all leaf nodes are have the expected depth in
the tree.
Updated test cases to deal with all of the above.
8192-byte and 16384-byte blocksize filesystems.
Change the default bytes-per-inode ratio of a new filesystem to be at most
one inode per block for large blocksizes.
would cause i_size to be too big), and offer to truncate the inode.
Remove old bogus i_size checks.
Add test case which tests e2fsck's handling of large sparse files.
Older e2fsck with the old(er) bogus i_size checks didn't handle
this correctly.
V2 fields are set on a V1 journal superblock, or an
internal V2 journal has s_nr_users is non-zero, clear the
entire journal superblock beyond the V1 superblock. This
fixes botched V1->V2 updates.
problem.c, problem.h (PR_0_CLEAR_V2_JOURNAL): Add new problem code.
f_bad_local_jnl: New test which tests for a V2 journal with bad
fields caused by a botched V1->V2 upgrade.
changes in the problem code texts.
f_swapfs: The image file used by f_swapfs had bugs which got
caught by Andreas' changes to be more strict about
symlinks.
f_badinode: Added a fast symlink with an invalid size to test e2fsck's
handling of this case.
RELEASE-NOTES:
Upate last couple of changes for the WIP release.
Makefile.in: Move include/asm/types.h.in to lib/ext2fs/ext2_fs.h.in.
wordwrap.pl: Add some rules which help fix up the dependencies.
Many files:
Move include/asm/types.h.in to lib/ext2fs/ext2_fs.h.in.
d_loaddump: Fix test script to remove bash'isms, and make the shell
script more robust in cases where the user has overridden CFLAGS so
that the debugfs binary isn't compiled with -g, and is smaller than
128k. Also specify the blocksize to be used explictly to avoid
problems with people who change the mke2fs default parameters.
pass1.c: Treat inodes with a low dtime (that were from a corrupted
orphan list) specially.
problem.c, problem.h: Add new problem codes PR_1_LOW_DTIME and
PR_1_ORPHAN_LIST_REFUGEES, and a new latch group, PR_LATCH_LOW_DTIME.
problemP.h: Expand the size of the problem flag to be an int instead
of a short. Expand space in the flag word which is reserved for
problem latch flags from 3 bits to 8 bits.
ChangeLog, expect.1, expect.2, image.gz, name:
f_badorphan: New test which verifies corrupted orphan list handling.
badblocks.c, chattr.c, dumpe2fs.c, e2image.c, findsuper.c, lsattr.c,
mke2fs.c, mklost+found.c, tune2fs.c, util.c: Change location of
ext2_fs.h to be ext2fs/ext2_fs.h
ChangeLog, Makefile.in, resize2fs.h:
resize2fs.h: Change location of ext2_fs.h to be ext2fs/ext2_fs.h
ChangeLog, Makefile.in, debugfs.h:
debugfs.h: Change location of ext2_fs.h to be ext2fs/ext2_fs.h
ChangeLog, Makefile.in, e2fsck.h, scantest.c:
e2fsck.h, scantest.c: Change location of ext2_fs.h to be
ext2fs/ext2_fs.h
ChangeLog, Makefile.in, tst_uuid.c, uuid_time.c:
tst_uuid.c, uuid_time.c: Remove unneeded #include of ext2_fs.h
ChangeLog, Makefile.in, e2p.h:
e2p.h: Change location of ext2_fs.h to be ext2fs/ext2_fs.h
ChangeLog, Makefile.in, test_icount.c, test_rel.c:
test_icount.c, test_rel.c: Change location of ext2_fs.h to be
ext2fs/ext2_fs.h
jfs_e2fsck.h, jfs_user.h: Replaces jfs_compat.h. The jfs.h file has
been moved to the include/linux directory.
journal.c, revoke.c, recovery.c: Updated files from Stephen to support
the V2 superblock and revoke processing. The journal.c and revoke.c
files are copies from the ext3 kernel source.
Makefile.in: Added revoke.c to the list of source/object files.
Makefile.in:
Fix up some mistakes in the source file list, and regenerate the
dependencies.
Update Makefile dependencies.
ChangeLog, jfs.h:
jfs.h: Remove excess #include of JFS_DEBUG. Not needed for e2fsprogs,
since we optioanlly define it in the configuration file system.
mke2fs.c (PRS): Applied Andreas Dilger's patch to make the -r -s
handling a bit more sane. (Even though -s is deprecated at this
point.)
ChangeLog, expect.1:
f_journal: Update to take into account new printing by the e2fsck
program.
version.h:
Update for upcoming WIP release.
random_exercise.c: New file which feeds a lot of file creations and
deletions (while leaving the file descriptor open, and then closing
the file descriptor later). This generates lots of fodder for the
orphan list code, as well as for the ext3 journal.
hold_inode.c: New file which holds an inode or a directory open (for
testing orphan list code).
ChangeLog, run_e2fsck, expect.1, expect.2, image.gz, name, expect:
run_e2fsck: Filter out JFS DEBUG messages when comparing e2fsck output.
f_journal: New test case which checks out running the ext3 journal.
f_orphan: New test case which checks clearing the list of orphan
inodes (files and directories).
f_swapfs/expect: Update to reflect new debugfs format for dumping the
blocks of an inode.
Commit this file for future use; contains a configure.in script for when
libuuid gets separtead out into its own package.
libext2fs.texinfo:
Update version numbers for 1.19 release.
TODO:
Commit TODO list for 1.19 release.
README:
Update file for 1.19 release.
ChangeLog, e2fsprogs.spec:
e2fsprogs.spec: Merge in a few changes from the Red Hat 6.2 spec file,
now that we're using a modern rpm to build e2fsprogs. Also updated
version number to 1.19.
version.h:
Update version number for 1.19 release.
ChangeLog:
Check in changes for 1.19 release.
ct_c.awk: Work around a bug in gawk 3.05
mk_cmds.sh.in: Allow the build system to override the standard
location for finding the ct_c.* files by setting the _SS_DIR_OVERRIDE
environment variable.
Makefile.in: Use _SS_DIR_OVERRIDE to make sure we get the version in
the source tree.
ChangeLog, Makefile.in:
Makefile.in: Use _SS_DIR_OVERRIDE to make sure we get the
mk_cmds support files from the source tree.
problem.c, problem.h (PR_0_HURD_CLEAR_FILETYPE): Add new problem code.
super.c (check_super_block): If the OS type in the superblock is the
Hurd, check to see if the filetype feature is set, and offer to clear
it if so. This needs to be done since the Hurd doesn't properly
support the filetype feature. (And since the hurd allows the
transmogrification of files to special files and vice versa --- for no
good reason that I can understand --- it can't support the filetype
feature for the forseeable future, either.)
ChangeLog, mke2fs.c:
mke2fs.c (main): We forcibly turn off the filetype feature if the OS
is the hurd, since the hurd doesn't support it. (And since the hurd
allows the transmogrification of files to special files and vice versa
--- for no good reason that I can understand --- it can't support the
filetype feature for the forseeable future, either.)
mke2fs.c (proceed_question): Fix reversed sense of proceed_question
that was busted due to the internationalization patch. Fixed bug
where if proceed_question was called twice, the input buffer wasn't
cleared of the previous question's newline.
ChangeLog, expect.1, expect.2, image.gz, name:
f_hurd: Add test for Hurd-specific features (right now, just checks to
make sure the filetype feature is cleared)
ChangeLog, ls.c:
ls.c (list_super): Change the string displayed for the Hurd to be
GNU/Hurd, instead of just "GNU".
Makefile.in (source_tar_file): Remove the resize directory from the
list of excluded files.
version.h: Update version header for an WIP release.
e2fsprogs.spec, ChangeLog:
e2fsprogs.spec: Updated for 1.19 release; added resize2fs.
ChangeLog, expect.1:
f_filetype: Updated expect script to match with new text for
immutable/append-only files.
TODO:
Update TODO file.
Makefile.in (distclean): Remove TAGS and Makefile.in.old from the
source directory. Also, when making the .exclude file for the
source_tar_file, exclude those two files as well.
Makefile.in (distclean): Remove TAGS and Makefile.in.old from the
source directory.
f_imagic: New test case which tests handling of imagic inodes in an
non-imagic-enabled filessystem.
f_imagic_fs: New test case which tests handling of imagic inodes in an
imagic-enabled filesystem.
f_filetype: New test case which tests setting filetype information in
a filesystem. Also tests handling of immutable special files
(device/fifo).
run_e2fsck: Add support for PREP_CMD, which allows a test case to
specify some commands which will be run (via eval) after the image is
compressed and before running e2fsck.
Theodore Ts'o