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181 lines
7.0 KiB
181 lines
7.0 KiB
E2fsprogs 1.19 (July 13, 2000)
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==============================
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Release the resize2fs program since the timeout before it could
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be released under the GPL has finally expired.
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Add experimental support needed for the ext2 compression patches.
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This requires compiling e2fsprogs with the --enable-compression flag
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to the configure script.
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Added ext3 journalling support. E2fsck will run the journal (if
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necessary) by temporarily mounting the filesystem. /sbin/fsck.ext3 is
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installed as a symlink to e2fsck. Fsck has been taught about ext3,
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and treats it the same as ext2 in terms of the progress bar logic.
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Dumpe2fs will display the superblock journalling information if the
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filesystem has a journal. The ext2 library will now permit opening an
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ext3 filesystem with the recovery flag set. This is necessary for
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on-line dump's to work correctly, but there may be issues with this
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working well since ext3 is much less aggressive about syncing blocks to
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the filesystem, since they're safe on the journal.
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Tune2fs and e2fsck have been changed to allow the mount_count check to
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be disabled by setting max_mount_count to -1. (This was already
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supported by the kernel.)
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Create a symbolic link for fsck.ext3, since the e2fsprogs utilities
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are used for ext3 as well.
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Added internationalization support for e2fsprogs; must be enabled
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by passing --enable-nls to configure.
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Always use the provided ext2fs header files to insulate ourselves from
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kernel version changes. Which include files are used by e2fsprogs
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have also been cleaned up to improve portability.
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Limit the number of times that e2fsck updates the progress bar so that
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people who are booting using a 9600 baud console don't get swamped by
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too many updates.
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Improved the loop detection algorithm in e2sck's pass #3 so that it is
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much, much faster for large filesystems with a large number of
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directories.
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The memory footprint for e2fsck is now slightly smaller than before.
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E2fsck now checks if special devices have a non-zero size, and offers
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to clear the size field if it finds such an inode.
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E2fsck now checks if special devices have the append-only flag set,
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and offers to clear the inode.
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E2fsck now properly handles some "should never fail" cases during a
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bitmap copy in pass5.
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E2fsck now properly prints control characters in filenames as ^A .. ^Z.
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E2fsck now calculates the correct location of the backup superblock in
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the case of filesystem blocksizes > 1k.
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Fixed a bug in e2fsck's calculation of the number of inodes_per_block
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which normally didn't cause problems under most filesystem parameters,
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but could cause a valid superblock to be rejected in extreme cases.
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Other checks for validating superblock values were made more
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stringent.
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Added non-destructive write testing to the badblocks program, courtesy
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of David Beattie. The badblocks also now has an option to input the
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current set of bad blocks, so that known bad blocks are skipped to
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speed up the badblocks test. There is also a persistent rescan
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feature which causes badblocks to run until it has completed some
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number of passes without discovering any new bad blocks.
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Badblocks now checks to see if the device is mounted and refuses to do
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the tests involving writing to the device if it is mounted. Also,
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badblocks now allows the number of blocks to be checked to be
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defaulted to the size of the partition.
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Fixed a bug in fsck which didn't allow non-root users to be able to
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check filesystems if there were any LABEL= or UUID= entries in
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/etc/fstab.
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The Hurd doesn't support the filetype filesystem feature. The mke2fs
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program now makes sure that for the Hurd, the filetype feature is
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turned off. E2fsck will check to see if the filetype feature is
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turned on for Hurd filesystems, and offer to turn off the feature.
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Mke2fs now has a safety check to make sure the number of blocks do not
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exceed 32 bits even on a 64 bit platform.
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Really fixed a bug in fsck to allow "fsck -As" to run interactive
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fsck's. (For those people who like to do interactive fsck's in the
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/etc/rc scripts!?!)
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Debugfs has a few new features: the rdump command, which will do a
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recursive dump of a directory and all of its contents, and the lcd
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command which does a local chdir (much like the ftp command of the
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same name). In addition, the debugfs program and the open_filesystem
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command now takes three new options: -b and -s, which allows the
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blocksize and superblock location to be specified, and the -c option
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which is used in catastrophic situations where the block group
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descriptors are corrupt. If the -c option is specified, debugfs will
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skip trying to read in the block and inode bitmaps.
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Debugfs's lsdel command was fixed to handle bad blocks in the inode
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table.
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A Y2K bug in debugfs's "ls -l" handling was fixed by switching to use
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4 digit years.
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General improvements in error messages
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- Mke2fs prints a sane error message if the partition size is zero
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(usually because the partition table wasn't reread by the
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kernel due to the partition being busy), instead of "invalid
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argument passed to ext2 library while initializing superblock".
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- Fsck now prints more self-explanatory message if an invalid UUID=
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or LABEL= specification is passed to it.
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UUID library changed to use the LGPL.
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Fixed a bug in the UUID library where very rapid calls to the
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time-based UUID generator could cause duplicate UUID's to be returned.
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This was not a problem for e2fsprogs, but it could be a problem for
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other users of the library.
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Make the UUID library more robust in the face of missing or an
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improper /dev/urandom or /dev/random files.
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Added some random portability fixes for Solaris.
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Some minor man page updates.
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Fixed a memory leak in the ss library.
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Programmer's notes:
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-------------------
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We now try to use lseek64 and open64 from the LFS if possible.
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The 3rd parameter in e2p's print_flags is now a flags word, instead of
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a boolean option.
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The mark and unmark bitmap functions now return the previous state of
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the bit that was being changed, which is useful for some speed
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optimizations.
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The following functions have been added to enhance the badblocks list
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handling in libext2fs: ext2fs_write_bb_FILE, ext2fs_read_bb_FILE2, and
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ext2fs_badblocks_equal.
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The ext2 header files now have the latest journalling fields to the
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superblock.
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The ext2fs_mkdir function in libext2fs now properly backs out of error
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conditions robustly.
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Cleaned up makefiles:
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- to cleanly compile with the -j flag.
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- so distclean removes all generated files.
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- so in case of an error while installing header files, the make aborts.
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Fix test_script so that it works correctly when compiling in the
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source directory.
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The random UUID generation routine has been made slightly better in
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the case where /dev/random doesn't exist. (Use of randomly-based UUID
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is still not recommended if /dev/random doesn't exist, however; it's
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better to use the time/ethernet MAC address UUID in this case.)
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Clean up the build process so it's more friendly in case of missing
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directories.
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The ext2fs header file can now be #include'd into C++ programs.
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The e2p.h header file is now installed.
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Added workaround to a gawk 3.0.5 bug in lib/ss/mk_cmds.
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