mirror of https://github.com/vitalif/e2fsprogs
![]() Using -U option you can change the UUID for fs, however it will not work for journal device, since it have a copy of this UUID inside jsb (i.e. journal super block). So copy UUID on change into that block. Here is the initial thread: http://comments.gmane.org/gmane.comp.file-systems.ext4/44532 You can reproduce this by executing following commands: $ fallocate -l100M /tmp/dev $ fallocate -l100M /tmp/journal $ sudo /sbin/losetup /dev/loop1 /tmp/dev $ sudo /sbin/losetup /dev/loop0 /tmp/journal $ mke2fs -O journal_dev /tmp/journal $ tune2fs -U da1f2ed0-60f6-aaaa-92fd-738701418523 /tmp/journal $ sudo mke2fs -t ext4 -J device=/dev/loop0 /dev/loop1 $ dumpe2fs -h /tmp/dev | fgrep UUID dumpe2fs 1.43-WIP (18-May-2014) Filesystem UUID: 8a776be9-12eb-411f-8e88-b873575ecfb6 Journal UUID: e3d02151-e776-4865-af25-aecb7291e8e5 $ sudo e2fsck /dev/vdc e2fsck 1.43-WIP (18-May-2014) External journal does not support this filesystem /dev/loop1: ********** WARNING: Filesystem still has errors ********** Reported-by: Chin Tzung Cheng <chintzung@gmail.com> Signed-off-by: Azat Khuzhin <a3at.mail@gmail.com> Reviewed-by: Andreas Dilger <adilger@dilger.ca> Signed-off-by: Theodore Ts'o <tytso@mit.edu> |
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config | ||
contrib | ||
debian | ||
debugfs | ||
doc | ||
e2fsck | ||
ext2ed | ||
include/nonunix | ||
install-utils | ||
intl | ||
lib | ||
misc | ||
po | ||
resize | ||
tests | ||
util | ||
.gitignore | ||
.hgignore | ||
.missing-copyright | ||
.release-checklist | ||
ABOUT-NLS | ||
COPYING | ||
INSTALL | ||
INSTALL.elfbin | ||
MCONFIG.in | ||
Makefile.in | ||
README | ||
README.subset | ||
RELEASE-NOTES | ||
SHLIBS | ||
SUBMITTING-PATCHES | ||
TODO | ||
acinclude.m4 | ||
aclocal.m4 | ||
configure | ||
configure.in | ||
depfix.sed | ||
e2fsprogs.lsm | ||
e2fsprogs.spec.in | ||
version.h | ||
wordwrap.pl |
README
This is the new version (1.42.11) of the second extended file system management programs. From time to time, I release new versions of e2fsprogs, to fix bugs and to make the utilities more robust. You can always find information about the latest version at the the e2fsprogs web page, which is: http://e2fsprogs.sourceforge.net The INSTALL file has instructions on building and installing e2fsprogs. Provisions for building Red Hat RPMs and Debian dpkg files are supplied as well. In case of bugs in these programs, please contact Ted Ts'o at tytso@mit.edu or tytso@alum.mit.edu. See the e2fsck man page for suggestions of what sort of information to include when submitting bug reports for these programs.