[Bug 2079866] Re: grub-pc configure fails during upgrade from 22.04 to 24.04

[Mate Kukri]

Hmm it seems like `grub-{ef,pc}/cloud_style_installation: true` is wrong
for this set up.

Seems like the upgrader thinks this installation was deployed from a
cloud image.

Does `/etc/cloud/build.info` exist on your system? What does it say?

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Title:
  grub-pc configure fails during upgrade from 22.04 to 24.04

Status in grub2 package in Ubuntu:
  New

Bug description:
  During upgrade to 24.04 and afterwards when executing "apt upgrade"  I
  get the following error:

  Setting up grub-pc (2.12-1ubuntu7) ...
  Installing for i386-pc platform.
  mdadm: /dev/md does not appear to be an md device
  grub-install: error: ioctl RAID_VERSION error: Inappropriate ioctl for device.
  dpkg: error processing package grub-pc (--configure):
   installed grub-pc package post-installation script subprocess returned error exit status 1
  Errors were encountered while processing:
   grub-pc
  E: Sub-process /usr/bin/dpkg returned an error code (1)

  The system does function normally, but I can not finish the upgrade.

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: grub-pc 2.12-1ubuntu7
  ProcVersionSignature: User Name 6.8.0-41.41-generic 6.8.12
  Uname: Linux 6.8.0-41-generic x86_64
  ApportVersion: 2.28.1-0ubuntu3.1
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CloudArchitecture: x86_64
  CloudBuildName: server
  CloudID: configdrive
  CloudName: configdrive
  CloudPlatform: configdrive
  CloudSerial: 20221104
  CloudSubPlatform: config-disk (/dev/sda5)
  Date: Fri Sep  6 21:28:09 2024
  ProcEnviron:
   LANG=C.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm
   XDG_RUNTIME_DIR=<set>
  SourcePackage: grub2
  UpgradeStatus: Upgraded to noble on 2024-08-30 (8 days ago)
  mtime.conffile..etc.init.d.apport: 2024-07-22T14:59:07

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