[Bug 1878705] Autopkgtest regression report (grub2/2.04-1ubuntu26.3)

Ubuntu SRU Bot 1878705 at bugs.launchpad.net
Thu Aug 20 19:23:23 UTC 2020


All autopkgtests for the newly accepted grub2 (2.04-1ubuntu26.3) for focal have finished running.
The following regressions have been reported in tests triggered by the package:

ubuntu-image/1.9+20.04ubuntu1 (arm64)
grubzfs-testsuite/0.4.10 (amd64)


Please visit the excuses page listed below and investigate the failures, proceeding afterwards as per the StableReleaseUpdates policy regarding autopkgtest regressions [1].

https://people.canonical.com/~ubuntu-archive/proposed-
migration/focal/update_excuses.html#grub2

[1] https://wiki.ubuntu.com/StableReleaseUpdates#Autopkgtest_Regressions

Thank you!

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https://bugs.launchpad.net/bugs/1878705

Title:
  Fix multiple initrds support in grub.conf

Status in grub2 package in Ubuntu:
  Fix Released
Status in grub2 source package in Focal:
  Fix Committed
Status in grub2 source package in Groovy:
  Fix Released

Bug description:
  [Impact]

   * When attempting to use multiple initrd, update-grub generates
  invalid grub.cfg configuration.

  [Test Case]

   * sudo touch /boot/microcode.cpio
   * sudo update-grub
   * grep microcode.cpio /boot/grub/grub.cfg
  initrd	/ microcode.cpio initrd.img-5.4.0-37-generic

  Observe that the initrd stanzas are incorrect. Instead they should be
  _both_ absolute valid filepaths from grub prefix location, i.e.

  initrd /microcode.cpio /initrd.img-5.4.0-37-generic

   # ensure one cleans up the system after testing
   * sudo rm /boot/microcode.cpio
   * sudo update-grub

  [Regression Potential]

   * 2.04 upstream release supports multiple initrds correctly, but the
  ubuntu-only patches incorrectly changed the behaviour of grub-mkconfig
  breaking this support. This SRU fixes this. Since currently multiple
  initrd support is broken, nobody is using it. But hopefully it will
  become usable after this SRU and will be used by default in certain
  configurations.

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