[Bug 1943557] Re: package grub-common 2.04-1ubuntu26.13 failed to install/upgrade: installed grub-common package post-installation script subprocess returned error exit status 1

[Julian Andres Klode]

It seems your /boot/grub/grubenv gets corrupted on a weekly basis then -
It fails to find that first line:

# head -1 /boot/grub/grubenv 
# GRUB Environment Block

Deleting the file should get you started again. Maybe there is an issue
with the PCIe card or the SSD causing the file(system) to get corrupted?

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Title:
  package grub-common 2.04-1ubuntu26.13 failed to install/upgrade:
  installed grub-common package post-installation script subprocess
  returned error exit status 1

Status in grub2 package in Ubuntu:
  Incomplete

Bug description:
  This is a single operating system home pc where the system disc is a
  2.5" Samsung 860 Pro 512GB mounted on a ASMedia PCIe card, I also have
  3 1TB Seagate 3.5" mechanical hard drives with NTFS file system on
  them which are data drives left over from the time when I used to use
  Windows 7, hence the NTFS partitions.

  Every time I do a clean install, the following Monday I get error
  messages again, and can only boot the pc via the grub menu thereafter.
  Obviously Monday being the start of the new week is something to do
  with it. It does not matter which day of the week I do a clean
  install, the following Monday is always the same result.

  ProblemType: Package
  DistroRelease: Ubuntu 20.04
  Package: grub-common 2.04-1ubuntu26.13
  ProcVersionSignature: Ubuntu 5.11.0-34.36~20.04.1-generic 5.11.22
  Uname: Linux 5.11.0-34-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.18
  Architecture: amd64
  CasperMD5CheckResult: skip
  Date: Tue Sep 14 10:27:29 2021
  ErrorMessage: installed grub-common package post-installation script subprocess returned error exit status 1
  InstallationDate: Installed on 2021-07-06 (69 days ago)
  InstallationMedia: Ubuntu 20.04.2 LTS "Focal Fossa" - Release amd64 (20210705.1)
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-34-generic root=UUID=cb0bee09-2844-4f73-923b-3ee38fbd9666 ro quiet splash
  Python3Details: /usr/bin/python3.8, Python 3.8.10, python3-minimal, 3.8.2-0ubuntu2
  PythonDetails: N/A
  RelatedPackageVersions:
   dpkg 1.19.7ubuntu3
   apt  2.0.6
  SourcePackage: grub2
  Title: package grub-common 2.04-1ubuntu26.13 failed to install/upgrade: installed grub-common package post-installation script subprocess returned error exit status 1
  UpgradeStatus: No upgrade log present (probably fresh install)

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