Public bug reported: Description: Ubuntu Xenial Xerus (development branch) Release: 16.04
f2fs-tools: Installed: 1.6.0-2 Candidate: 1.6.0-2 Version table: *** 1.6.0-2 500 500 http://gb.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages 100 /var/lib/dpkg/status 100% repeatable on various machines. How to trigger: 1: Setup mdadm raid1 on 2 sata SSDs 2: Format as f2fs 3: install Wily or Xenial onto the f2fs (to be mounted as / in final system), set mountpoint to "defaults,discard" . 4: After installation boot up. 5: Reboot via gui or "shutdown -r", no problem. 6: Update / mount options By default, with "defaults,discard" these are rw,relatime,background_gc=on,discard,user_xattr,acl,inline_data,extent_cache,active_logs=6 add inline_xattr,inline_dentry,flush_merge Remake initramfs, update grub, etc. Reboot Once running with the new parameters: Leave operating for a while, then shutdown via gui or "shutdown -r" On reboot, the filesystem will be completely trashed. fsck.f2fs is unlikely to recover it. This does not happen for non-raid f2fs partitions mounted below root. Presumably this occurs because the FS is not properly flushed before reboot, but it faces the same filesystem trashing issues if the system is reset. ** Affects: lxpanel (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1557745 Title: root filesystem-trashing bug in f2fs + mdadm raid1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lxpanel/+bug/1557745/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs