[Bug 1887964] Re: VG unavailable after upgrade from 18.04 to 20.04 Cannot process volume group vg01 Volume group "vg01" not found

[Frank Heimes]

I'm changing this ticket to lvm2 and focal, removing the currently marked as affected "Ubuntu on IBM z Systems" project, since the logs show that they come from a amd64 system.
Nevertheless, the referenced LP 1874381, was on s390x.

** Project changed: ubuntu-z-systems => lvm2 (Ubuntu)

** Also affects: lvm2 (Ubuntu Focal)
   Importance: Undecided
       Status: New

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Title:
  VG unavailable after upgrade from 18.04 to 20.04 Cannot process volume
  group vg01 Volume group "vg01" not found

Status in lvm2 package in Ubuntu:
  New
Status in lvm2 source package in Focal:
  New

Bug description:
  After upgrading a laptop configured with LVM from 18.04 to 20.04 the volume group is no longer found.
  During boot the console shows

  Volume group "vg01" not found
  Cannot process volume group vg01
  Gave up waiting for suspend/resume device
  ALERT! /dev/mapper/vg01-root does not exist. Dropping to a shell!

  Attached dist-upgrade logs and console output.

  Tried the "vgck --updatemetadata vg01" recommended on this bug report:
  https://bugs.launchpad.net/ubuntu-z-systems/+bug/1874381

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