[Bug 1792575] Re: Boot failure with efi shims from 20180913.0

[Mathieu Trudel-Lapierre]

So, the patch would apply, but you're not seeing the error messages that
I expect you should be seeing if that was the problem. We can certainly
try to apply the patch (I will make it available in a PPA), but I'm not
sure that will help.

For one thing, you are using the same grub in both cases, and the errors
you are seeing are post-shim (it's grub errors, but I'm not sure if it's
at the point where it tries to load the grub from disk or the kernel).

What versions of grub2 and grub2-signed are installed on the affected
system (the client being deployed)?

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https://bugs.launchpad.net/bugs/1792575

Title:
  Boot failure with efi shims from 20180913.0

Status in MAAS:
  New
Status in shim package in Ubuntu:
  New

Bug description:
  We have had several nodes that had been deployed on Sept. 12 and were
  booting correctly fail to boot.

  On the console and during tracing we could see they were getting dhcp
  and pxe information, but then errored out with "relocation failed",
  dropping into a fallback grub menu with a Local boot option.

  After copying over bootx64.efi grubx64.efi from
  https://images.maas.io/ephemeral-v3/daily/bootloaders/uefi/amd64/20180906.0/
  instead of 20180913.0/ and rebooting, boot would commence
  successfully.

  Hardware: Dell R640
  maas 2.3.5-6511-gf466fdb-0ubuntu1~16.04.1

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