Public bug reported: Symptom: on a fresh wily install in a PV virtual machine under Xen, systemd's boot.mount action fails. /boot is on /dev/xvda1, other filesystems (including /) are on LVM and get mounted OK [after a manual "vgchange -ay" at the (initramfs) prompt, but that's a different bug].
Fix (successfully tested): add "xvd*" to the whitelist in /lib/udev/rules.d/60-persistent-storage.rules . The fix was inspired by https://bugs.debian.org/787367 which addressed a similar issue with bcache. Description: Ubuntu Wily Werewolf (development branch) Release: 15.10 udev: Installed: 220-7ubuntu1 Candidate: 220-7ubuntu1 Version table: *** 220-7ubuntu1 0 500 http://ubuntu.mirror.su.se/ubuntu/ wily/main i386 Packages 100 /var/lib/dpkg/status ** Affects: udev (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/1467151 Title: 60-persistent-storage.rules fails to create by-uuid links to Xen virtual disks (xvd) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/udev/+bug/1467151/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs