[Bug 1820898] Re: grub in xenial fails to read pc-linux 4.15 kernel snap

[Colin Watson]

** Changed in: grub2 (Ubuntu Xenial)
       Status: New => Triaged

** Changed in: grub2 (Ubuntu Xenial)
   Importance: Undecided => High

** Changed in: grub2 (Ubuntu Xenial)
     Assignee: (unassigned) => Colin Watson (cjwatson)

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Title:
  grub in xenial fails to read pc-linux 4.15 kernel snap

Status in grub2 package in Ubuntu:
  Fix Released
Status in grub2 source package in Xenial:
  Triaged

Bug description:
  The grub version in xenial fails to read the pc-kernel 4.15 kernel
  snap.

  To reproduce (thanks to Colin for the grub-fstest hint):

  $ snap download pc-kernel --channel 18
  $ grub-fstest pc-kernel_192.snap crc /vmlinuz

  This fails with the xenial grub with:
  grub-fstest: error: read error at offset 8096256: invalid xz chunk.

  but it should work (it works correctly with the grub2 from bionic and
  later).

  Colin pointed to
  https://git.savannah.gnu.org/cgit/grub.git/commit/?id=951306c5094d2bfb46d5baedfde84a2015c4a3fa
  which may fix the issue.

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