[Bug 2013336] [NEW] agent fails if /boot/grub/menu.lst GRUB config file is not present

[Alberto Contreras]

Public bug reported:

The agent fails to initialize the swap when /boot/grub/menu.lst is not present.
That file is related to GRUB and is not needed on systems with GRUB2 installed.

# /usr/bin/enable-ec2-spot-hibernation
# journalctl -u hibagent
...
Mar 30 10:51:10 ip-172-31-34-23 /hibagent[615]: Failed to initialize swap, reason: [Errno 2] No such file or directory: '/boot/grub/menu.lst'
Mar 30 10:51:11 ip-172-31-34-23 /hibagent[615]: Background swap initialization thread is complete.

I expected the agent to not require config files of older grub versions
to be present to correctly configure the system for hibernation.

** Affects: hibagent (Ubuntu)
     Importance: Undecided
         Status: Fix Released

** Affects: hibagent (Ubuntu Focal)
     Importance: Undecided
         Status: New

** Affects: hibagent (Ubuntu Jammy)
     Importance: Undecided
         Status: New

** Affects: hibagent (Ubuntu Kinetic)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/2013336

Title:
  agent fails if /boot/grub/menu.lst GRUB config file is not present

Status in hibagent package in Ubuntu:
  Fix Released
Status in hibagent source package in Focal:
  New
Status in hibagent source package in Jammy:
  New
Status in hibagent source package in Kinetic:
  New

Bug description:
  The agent fails to initialize the swap when /boot/grub/menu.lst is not present.
  That file is related to GRUB and is not needed on systems with GRUB2 installed.

  # /usr/bin/enable-ec2-spot-hibernation
  # journalctl -u hibagent
  ...
  Mar 30 10:51:10 ip-172-31-34-23 /hibagent[615]: Failed to initialize swap, reason: [Errno 2] No such file or directory: '/boot/grub/menu.lst'
  Mar 30 10:51:11 ip-172-31-34-23 /hibagent[615]: Background swap initialization thread is complete.

  I expected the agent to not require config files of older grub
  versions to be present to correctly configure the system for
  hibernation.

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