mirror of
https://git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git
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Update for 1.42 release
git-svn-id: https://e2fsprogs.svn.sourceforge.net/svnroot/e2fsprogs/web@37 46e75558-b442-0410-83ab-e6570fdeb8bf
This commit is contained in:
tytso
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@ -30,6 +30,7 @@
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<H2>Release notes for the e2fsprogs package</H2>
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<H2>Release notes for the e2fsprogs package</H2>
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<UL>
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<UL>
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<LI><A HREF="#1.42">E2fsprogs 1.42 (November 29, 2011)</A>
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<LI><A HREF="#1.41.14">E2fsprogs 1.41.14 (December 22, 2010)</A>
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<LI><A HREF="#1.41.14">E2fsprogs 1.41.14 (December 22, 2010)</A>
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<LI><A HREF="#1.41.13">E2fsprogs 1.41.13 (December 13, 2010)</A>
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<LI><A HREF="#1.41.13">E2fsprogs 1.41.13 (December 13, 2010)</A>
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<LI><A HREF="#1.41.12">E2fsprogs 1.41.12 (May 17, 2010)</A>
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<LI><A HREF="#1.41.12">E2fsprogs 1.41.12 (May 17, 2010)</A>
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@ -97,6 +98,294 @@
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<LI><A HREF="#1.02">E2fsprogs 1.02 (January 16, 1996)</A>
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<LI><A HREF="#1.02">E2fsprogs 1.02 (January 16, 1996)</A>
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</UL>
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</UL>
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<H2><A NAME="1.42">E2fsprogs 1.42 (November 29, 2011)</A></H2>
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<P>This release of e2fsprogs has support for file systems > 16TB. Online
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resize requires kernel support which will hopefully be in Linux
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version 3.2. Offline support is not yet available for > 16TB file
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systems, but will be coming.</P>
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<P>This release of e2fsprogs has support for clustered allocation. This
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reduces the number of block (now cluster) bitmaps by allocating and
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deallocating space in contiguous power-of-2 collections of blocks,
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which are called clustered. This is a file system level feature,
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called 'bigalloc', which must be enabled when the file system is
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initially formatted. It is not backwards compatible with older
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kernels.</P>
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<P>Added support for the Multi-Mount Protection (MMP) feature.</P>
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<P>E2fsck more efficiently uses scratch files for really big file
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systems. (This is a feature that has to be turned on explicitly; see
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[scratch_files] in the e2fsck.conf man page.)</P>
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<P>Fix a bug in e2fsck where if the free blocks and inodes counts are
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incorrect, e2fsck would fix them without printing an error message.
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This would cause a "*** FILE SYSTEM WAS MODIFIED ***" message without
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any explanation of what was fixed.</P>
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<P>E2fsck will no longer attempt to clone an extended attribute block in
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pass1b handling if the file system does not support extended
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attributes.</P>
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<P>E2fsck will be more careful accidentally asking the user to continue
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if the file system is mounted, so that an escape sequence won't cause
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a false positive. (Addresses Debian Bug: #619859)</P>
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<P>E2fsck now uses less cpu time in pass 5 when large portions of the
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bitmaps are uninitialized.</P>
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<P>E2fsck will no longer segault when a corrupted file system has a bad
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extent, and removing it leads to a block needing to be deallocated.
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(Addresses SourceForge Bug: #2971800)</P>
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<P>E2fsck will catch termination signals (segfaults, bus errors, sigfpe)
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and print debugging information to make it easier to find potential
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problems.</P>
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<P>E2fsck will check to see if the bad block inode looks insane, and will
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skip trying to use if it certain fields which should be zero look
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non-zero. This is to avoid a corrupted bad block inode causing e2fsck
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to get confused and do more harm than good.</P>
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<P>If e2fsck modifies certain superblock fields which the kernel doesn't
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look at, it will now mark the superblock as dirty without marking the
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file system as changed. This avoids signalling the init scripts that
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a reboot is necessary, since the kernel isn't going to look at those
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fields, so it won't care if they have been changed.</P>
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<P>Fixed a bug in the libext2fs library (in the binary search routine of
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the icount abstraction) that could (very, very rarely) cause e2fsck to
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die in the middle of pass 1 or pass 2 processing.</P>
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<P>E2fsck will not try to do a discard operation if the -n option was
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specified on the command line.</P>
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<P>E2fsck now supports an extended "discard" option which will cause
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e2fsck to attempt discard all unused blocks after a full, successful
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file system check.</P>
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<P>E2fsck will check for the bad block inode to make sure it looks sane
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before trusting it, to avoid causing more harm than good to the file
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system.</P>
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<P>E2fsck now returns additional status bits in its exit code if it
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aborts early in the e2fsck run.</P>
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<P>E2fsck now correctly calculates the maximum file size in the case of
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the huge_file file system feature enabled without extents.</P>
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<P>The mke2fs and e2fsck programs now tries to use the punch hole command
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as a "discard" when operating on normal files.</P>
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<P>The e2image program now supports the qcow2 format, which is a more
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efficient way of capturing file system dumps.</P>
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<P>Mke2fs now supports the [devices] stanza in mke2fs.conf which allows
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per-device defaults to be specified in the configuration file.</P>
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<P>Mke2fs now supports the reserved_ratio relation in the [defaults] and
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[fs_types] section in mke2fs.conf.</P>
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<P>Mke2fs now creates extent-mapped directories for the root and
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lost+found directories.</P>
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<P>Mke2fs will skip zero'ing the journal if the extended option
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"lazy_journal_init" is specified. This can save a lot of time, but it
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does add a small amount of risk if the system crashes before the
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journal is overwritten entirely once. It is epsecially useful for
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testing.</P>
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<P>Mke2fs will now create file systems that enable user namespace
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extended attributes and with time- and mount count-based file
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system checks disabled.</P>
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<P>Mke2fs will not set a stride or strip size of one block based on block
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device attributes obtained from sysfs.</P>
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<P>Mke2fs now displays a progress report during the discard process.</P>
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<P>Mke2fs now handles extreme file system parameters correctly which
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previously caused the inodes per group to drop below 8, leading to a
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segfault. (The inodes per group must be a multiple of 8, but the code
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didn't correctly deal with an inodes per group count less than 8.)</P>
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<P>Mke2fs and tune2fs previously would give an error if the user tried
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setting the stride and stripe-width parameters to zero; but this is
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necessary to disable the stride and stripe-width settings. So allow
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setting these superblock fields to zero. (Addresses Google Bug:
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#4988557)</P>
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<P>Mke2fs now gives a warning if the auto-detected block size exceeds the
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system's page size.</P>
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<P>If the enable_periodic_fsck option is false in /etc/mke2fs.conf (which
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is the default), mke2fs will now set the s_max_mnt_count superblock
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field to -1, instead of 0. Kernels older then 3.0 will print a
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spurious message on each mount then they see a s_max_mnt_count set to
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0, which will annoy users. (Addresses Debian Bug: #632637)</P>
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<P>The default mke2fs.conf now has entries for "big" and "huge", which
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are needed for very big file systems.</P>
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<P>The resize2fs program now has support for a new online resize ioctl
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that can support file systems > 16TB, once it arrives in v3.x kernels.</P>
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<P>Fixed bug which caused resize2fs to fail when shrinking an empty file
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system down to its minimal size. (Addresses Sourceforge Bug #3404051)</P>
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<P>Fixed tune2fs's mount options parsing. (Addresses Debian Bug: #641667)</P>
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<P>Allow tune2fs to remove external journals if the device can not be
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found.</P>
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<P>Debugfs's icheck will now correctly find inodes which use the
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searched-for block as an extended attribute block.</P>
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<P>Debugfs now has a new "punch" command which remove blocks from the
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middle of an inode.</P>
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<P>Debugfs now has a new "e2freefrag" command which analyzes the free
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space fragmentation of the file system, using the same code as the
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e2freefrag program.</P>
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<P>Debugfs now has a "filefrag" command which displays information about
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a file's fragmentation.</P>
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<P>Add support to build a metadata-only, read-only, stripped-down version
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of debugfs called rdebugfs.</P>
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<P>Fixed a potential stack overrun bug in debugfs.</P>
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<P>The badblocks program now correctly recovers from I/O errors when
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direct I/O is being used. The badblocks command now also supports a
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-B option which forces the use of buffered I/O, and the -v option will
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provide a more detailed breakdown of read, write, and failed
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comparison errors.</P>
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<P>Added e4defrag tool which uses the EXT4_IOC_MOVE_EXT ioctl.</P>
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<P>Added support for journals larger than 2GB.</P>
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<P>Support using both hard links and symlinks when installing e2fsprogs.</P>
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<P>Add overflow checking to tune2fs -i's fsck interval, which must fit in
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a 32-bit field.</P>
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<P>The debugfs command now has a new 'blocks' command which prints out
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data blocks of a particular inode in a format which is useful for
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scripting.</P>
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<P>Filefrag will report 0 extents correctly in verbose mode. (Addresses
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RedHat Bugzilla: #653234)</P>
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<P>Filefrag has been fixed so its -v report prints the correct expected
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block number (previously there had been an off-by-one error). In
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addition, it will now display the number of contiguous extents when -v
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is not specified. This makes it consistent with the number of extents
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printed when the -v option was specified. In addition, the number of
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contiguous extents is far more interesting/useful than the number of
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physical extents for very large files. (Addresses Debian Bug:
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#631498, #644792)</P>
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<P>Logsave's usage message has been fixed. (Addresses Debian Bug:
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#619788)</P>
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<P>Avoid an infinite loop in ext2fs_find_block_device() if there are
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symlink loops in /dev caused by a buggy udev.</P>
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<P>Added a useful "fallocate" program to the contrib directory.</P>
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<P>Fixed an ABI compatibility problem in libext2fs which broke the dump
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program. Also added back some macros which dump needed so it could
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compile against the latest version of ext2_fs.h (Addresses Debian Bug:
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#636418)</P>
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<P>Fixed parsing of MNTOPT_ options for tune2fs and debugfs (Addresses
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Debian Bug: #641667)</P>
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<P>Added internationalization support for libcom_err error table strings.</P>
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<P>Fixed various spelling mistakes found in various output strings found
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by I18N translators.</P>
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<P>Update translations: French, Chinese, Germany, Indonesian, Swedish,
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Vietnamese, Polish, Dutch, Czech. (Addresses Debian Bugs: #520985,
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#620659)</P>
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<P>Fixed various Debian Packaging issues. (Addresses Debian Bugs:
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#614662, #632169, #641838, #627535, #629355)</P>
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<P>Updated/clarified man pages. (Addresses Debian Bugs: #639411,
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#642193, #634883)</P>
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<h3>Programming notes</h3>
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<P>Initial support for quota as an integrated feature, where the quota
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files are hidden system files that are automatically maintained by
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e2fsck is present, although disabled by default. It must be enabled
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by using the configure option --enable-quota.</P>
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<P>Reserved the on-disk fields for the metadata checksum and snapshot
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features, which are currently in development.</P>
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<P>The ext2fs library now has the new functions ext2fs_punch(),
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ext2fs_get_memzero() and ext2fs_file_get_inode().</P>
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<P>The ext2fs library now has support for calculating the crc32c checksum
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(via the new functions ext2fs_crc32c_be and ext2fs_crc32c_le).</P>
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<P>The I/O manager now supports the discard operation.</P>
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<P>Reserved file system code points for new 1st class quota feature.</P>
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<P>Shortened the compilation lines by moving the autoconf defines to
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a config.h header file.</P>
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<P>Fixed a potential free of an unitialized pointer in
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ext2fs_update_bb_inode().</P>
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<P>Fixed miscellaneous gcc -Wall and coverity warnings.</P>
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<P>Fixed portability issues for Mac OS X, Hurd, and FreeBSD.</P>
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<P>Fixed a build failure when OMIT_COM_ERR is defined.</P>
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<P>Improved error checking and fixed memory leaks caused by error return
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paths.</P>
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<P>Add ext2fs_flush2() and ext2fs_close2() which takes a flag to allow
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the fsync() to be skipped.</P>
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<P>Added a test for extent-mapped journals by mke2fs and tune2fs.</P>
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<P>Added a test for creating a large (over 4GB) journal using mke2fs.</P>
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<P>Added a test to make sure the inode size remains constant.</P>
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<P>The regression test script now prints the list of which tests failed.</P>
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<P>The regression test system now uses /tmp for its scratch files, which
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is often a tmpfs mounted file system and hence much faster.</P>
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<P>The i_e2image test was fixed so it works with valgrind.</P>
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<P>Tests that rely on debugfs are now skipped if debugfs wasn't built.</P>
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<P>Fixed the dependencies for "make check" so all required dependencies
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are built before running the gression tests.</P>
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<P>A link to com_err.h is installed in $(includedir) during a "make install".</P>
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<P>The po/*.gmo files are automatically rebuilt if they are missing or
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out of date. This helps out Debian packaging.</P>
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<P>Allow ext2fs_get_memalign() to compile on systems that don't have
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posix_memalign().</P>
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<P>Fixed a namespace leak in libext2fs (tdb_null).</P>
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<H2><A NAME="1.41.14">E2fsprogs 1.41.14 (December 22, 2010)</A></H2>
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<H2><A NAME="1.41.14">E2fsprogs 1.41.14 (December 22, 2010)</A></H2>
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<P>Fix spurious complaint in mke2fs where it would complain if the file
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<P>Fix spurious complaint in mke2fs where it would complain if the file
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@ -28,9 +28,9 @@
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<!-- Begin actual content -->
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<!-- Begin actual content -->
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<IMG SRC="../images/new.gif" ALIGN=LEFT>
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<IMG SRC="../images/new.gif" ALIGN=LEFT>
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<H2>Release 1.41.14 of e2fsprogs is available!</H2>
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<H2>Release 1.42 of e2fsprogs is available!</H2>
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<P>On December 22, 2010, version 1.41.14 of e2fsprogs was <A
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<P>On November 29, 2010, version 1.42 of e2fsprogs was <A
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HREF="http://e2fsprogs.sourceforge.net">announced</A>.</P>
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HREF="http://e2fsprogs.sourceforge.net">announced</A>.</P>
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<H2>Ext2fs Utilities</H2>
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<H2>Ext2fs Utilities</H2>
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Block a user