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

[Mate Kukri]

Hi Hatto,

Thanks for the information.

Unfortunately, I believe your server provider was deploying (probably
modified) cloud images on RAID setup which isn't really supported.

It can currently be made to work as you can see by resetting that
cloud_style_installation value, but similar setups might brake in the
future in other ways.

Mate

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https://bugs.launchpad.net/bugs/2079866

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

Status in grub2 package in Ubuntu:
  Confirmed

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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