package grub-efi-amd64 or grub-pc failed to remove: exit status 5 - ucfr: Association belongs to grub-pc, not grub-efi-amd64 / ucfr: Aborting

[Rémy]

Binary package hint: grub2

After upgrading from 9.10, I uninstalled this package with synaptics.

When both packages grub-pc and grub-efi-amd64 are installed, removal of one of them failed with the error:
ucfr: Association belongs to grub-pc, not grub-efi-amd64
ucfr: Aborting

or
ucfr: Association belongs to grub-efi-amd64, not grub-pc
ucfr: Aborting

ProblemType: Package
Architecture: amd64
Date: Wed Mar 17 17:32:35 2010
DistroRelease: Ubuntu 10.04
ErrorMessage: le sous-processus script post-removal installé a retourné une erreur de sortie d'état 5
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
NonfreeKernelModules: wl nvidia
Package: grub-efi-amd64 (not installed)
ProcVersionSignature: Ubuntu 2.6.32-16.25-generic
SourcePackage: grub2
Title: package grub-efi-amd64 (not installed) failed to install/upgrade: le sous-processus script post-removal installé a retourné une erreur de sortie d'état 5
Uname: Linux 2.6.32-16-generic x86_64

[Jean-Baptiste Lallement (jibel)]

Thanks for your report.

The relevant error is
---
Purge des fichiers de configuration de grub-efi-amd64 ...
ucfr: Association belongs to grub-pc, not grub-efi-amd64
ucfr: Aborting
dpkg : erreur de traitement de grub-efi-amd64 (--purge) :
 le sous-processus script post-removal installé a retourné une erreur de sortie d'état 5

[Colin Watson (cjwatson)]

Fixed in Maverick:

grub2 (1.98+20100527-1) unstable; urgency=low
[...]
  * Don't fail on purge if the ucf association has already been taken over
    by a different grub package (closes: #574176).
[...]

 -- Colin Watson <email address hidden> Tue, 01 Jun 2010 11:24:38 +0100