"mke2fs -S" is __very__ dangerous unless you give it exactly the same arguments that was used to make the filesystem in the first place (which probably in this case was something like "mke2fs -t ext4 /dev/sda1", so you have to use "mke2fs -t ext4 -S /dev/sda1" if you want to have any hope of mke2fs -S _not_ trashing your filesystem.
In this case it wouldn't have helped you much, given that e2fsck was able to use the fallback superblocks just fine. The failure was due to a bug in e2fsck -- specifically, an unhandled case where an interior node has a corrupted extent header. The cases where this will even show up is quite rare; I have one inode out of the 760,486 inodes in use that would even potentially be vulnerable to this failure (where the extent tree depth is >=2). In any case, I'll get this fixed in the next version of e2fsck's maintenance release. -- make ext4 as the primary filesystem for GNU/Linux https://bugs.launchpad.net/bugs/293465 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
