Public bug reported: When lvm snapshot exists on any of the volume groups, ubuntu will hang while booting and after a while display systemd-udevd:240 blocked for more than 120 seconds; lvm:50 blocked for more than 120 seconds. At this point, hard reset is required. Once every 5 or 6 resets it will boot normally.
Removing a snapshot makes it boot without issues every time. uname -a: 4.13.0-38-generic #43-Ubuntu SMP Wed Mar 14 15:20:44 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux ---> but tested also on 4.13.0-37 grub-efi-amd64 2.02~beta3-4ubuntu7.3 lvm2 2.02.168-2ubuntu3 systemd 234-2ubuntu12.3 affects ubuntu ** Affects: 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/1763047 Title: Ubuntu will boot once every 5 or 6 times when lvm snapshot exists To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1763047/+subscriptions -- ubuntu-bugs mailing list firstname.lastname@example.org https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs