Philipp, the reason why tune2fs showed that it was not clean is either (a) because in fact the file system was mounted, or (b) the system had previously crashed while the file system was mounted.
If in fact e2fsck later said that the file system was clean, then that's actually a pretty good indication that the file system *was* mounted. It may be that recent Ubuntu's or Fedora scripts are buggy with respect to making sure /etc/mtab is properly updated, especially in single user mode. (Again, all of this worked fine using standard System V init scripts, before the various distributions started descenging into the madness which is Upstart or Systemd.) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/711799 Title: e2fsprogs wrongly identifies ext4 as mounted To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/e2fsprogs/+bug/711799/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs