This is my fstab (I've modified the UUID's in the post for security) As you can see the subvolume is @ on /
# <file system> <mount point> <type> <options> <dump> <pass> proc /proc proc nodev,noexec,nosuid 0 0 # / was on /dev/sda1 during installation UUID=3a790354-6dcc-4905-afe5-xxxxxxxxxxxx / btrfs defaults,subvol=@ 0 1 # /home was on /dev/sda1 during installation UUID=3a790354-6dcc-4905-afe5-xxxxxxxxxxxx /home btrfs defaults,subvol=@home 0 2 # swap was on /dev/sda2 during installation UUID=05149535-4fc5-49b1-b661-xxxxxxxxxxxx none swap sw 0 0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/853849 Title: Update Fails due to btrfs not being able to take a snapshot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt-btrfs-snapshot/+bug/853849/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs