[Bug 1620589] Re: unattended-upgrade stuck because of "unknown filesystem" from os-prober

[Launchpad Bug Tracker]

[Expired for os-prober (Ubuntu) because there has been no activity for
60 days.]

** Changed in: os-prober (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1620589

Title:
  unattended-upgrade stuck because of "unknown filesystem" from os-
  prober

Status in grub2 package in Ubuntu:
  Expired
Status in os-prober package in Ubuntu:
  Expired

Bug description:
  I have a xenial server with ZFS on root, and it seems to have a stuck
  unattended-upgrade from June because of os-prober, see attached output
  of 'ps ef'.

  Running 'grub-mount /dev/sda1 /var/lib/os-prober/mount' manually gives
  error: unknown filesystem.

  Perhaps error handling should be better?

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