[Bug 2122124] Re: /etc/default/grub gone

[Benjamin Drung]

I checked grub on plucky: grub-common prerm/postrm do not have code for
/etc/default/grub. Only grub-pc has this code:

```
case "$1" in
  purge)
    rm -f /etc/default/grub
[...]
```

I checked the apt log of the affected system and found that I purged
grub-pc (in addition to grub-common). So grub-pc is the culprit and not
grub-common. So you could drop the grub-common as dummy transitional
package. grub-pc should not remove those files when grub-efi-amd64-bin
is installed.

** Changed in: grub2 (Ubuntu)
       Status: Fix Released => New

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Title:
  /etc/default/grub gone

Status in grub2 package in Ubuntu:
  New

Bug description:
  I noticed that my system booted without "quiet splash" and that
  /etc/default/grub was gone. I have grub-efi-amd64 and grub2-common
  installed, but not grub-common any more. I did run "apt purge ~c" some
  time before which removed grub-common.

  "sudo cp /usr/share/grub/default/grub /etc/default/grub" restored the
  previous behavior.

  So purging grub-common should not remove /etc/default/grub if
  grub2-common is installed.

  ProblemType: Bug
  DistroRelease: Ubuntu 25.10
  Package: grub2-common 2.14~git20250718.0e36779-1ubuntu3
  ProcVersionSignature: Ubuntu 6.17.0-3.3-generic 6.17.0-rc3
  Uname: Linux 6.17.0-3-generic x86_64
  ApportVersion: 2.33.1-0ubuntu2
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Sep  5 15:41:12 2025
  InstallationDate: Installed on 2025-07-28 (39 days ago)
  InstallationMedia: Ubuntu 25.04 "Plucky Puffin" - Release amd64 (20250415.3)
  ProcEnviron:
   LANG=de_DE.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
   XDG_RUNTIME_DIR=<set>
  SourcePackage: grub2
  UpgradeStatus: Upgraded to questing on 2025-08-08 (28 days ago)

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