Note that there were bugs found that necessitated format changes for metadata checksums in 3.18 --- which was released earlier this week.
E2fsprogs 1.43 hasn't been released yet, and e2fsprogs 1.42 has ***no**** support for metadata checksums. People who are interested in testing metadata checksums are welcome, but it should be people who are willing to use bleeding edge kernels and it's not **that** hard to build e2fsprogs from the git tree. Cheat sheet: git clone git://git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git cd e2fsprogs ./debian/rules dpkg-buildpackage -b -uc -rfakeroot Someone who doesn't feel themselves comfortable typing the above commands, and subcribing to the linux-ext4 list, and be prepared to potentially lose data and send bug reports to linux-ext4, probably shouldn't be experimenting with metadata_csum just yet. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to e2fsprogs in Ubuntu. https://bugs.launchpad.net/bugs/1365874 Title: Ubuntu 14.04 does not support ext4 metadata checksumming Status in e2fsprogs package in Ubuntu: Confirmed Bug description: In the Trusty release notes "Metadata checksumming" is listed as one of the tech highlights of kernel 3.13. https://wiki.ubuntu.com/TrustyTahr/ReleaseNotes#New_features_in_14.04_LTS However, the userland tools do not support this kernel feature. To the best of my knowledge this will be supported in 1.43, and won't be backported to 1.42. IMHO this is very misleading. It's like a car salesperson sold you a sports car with an V8 engine. After you drove it home, you opened the hood and realized only 6 cylinders are working because 2 of the spark plugs were not included, and you have to buy aftermarket ones. <rant>BTW, I've been following the development of e2fsprogs for over a year. 1.43 release has been in limbo for God knows how long :( </rant> To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/e2fsprogs/+bug/1365874/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
