[Bug 50437] Re: Resume from hibernation may fail because swap partition UUID does not match /etc/initramfs-tools/conf.d/resume

[Martin Pitt]

This is actually still an issue. ubiquity still writes a wrong UUID into
/etc/initramfs-tools/conf.d/resume, which causes a 5 second boot delay
from the /usr/share/initramfs-tools/scripts/local-premount/resume script
as it waits for a swap partition which doesn't exist. I think this comes
from ubiquity's ./scripts/plugininstall.py. This is confirmed on at
least two saucy computers, one of which was installed from scratch with
beta1.

** Also affects: ubiquity (Ubuntu)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/50437

Title:
  Resume from hibernation may fail because swap partition UUID does not
  match /etc/initramfs-tools/conf.d/resume

Status in “initramfs-tools” package in Ubuntu:
  Triaged
Status in “ubiquity” package in Ubuntu:
  New
Status in Baltix GNU/Linux:
  Confirmed

Bug description:
  There are a variety of circumstances which can cause the swap
  partition UUID to get out of sync with the system configuration, for
  example:

  1. User edits /etc/fstab to specify a different swap partition, either by UUID or by hardcoding the device path
  2. User reinitializes their swap partition with a new UUID using mkswap
  3. User repartitions their disk and thereby reinitializes the swap partition with a new UUID

  If this happens, the system will fail to resume from hibernation
  because it continues to look for the swap partition as specified in
  /etc/initramfs-tools/conf.d/resume.  Not finding this device, it will
  continue with normal system startup, as if no hibernation had taken
  place.

  It would be better if the system were more robust in the face of such
  changes.

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