J'ai le jeu d'épingles suivant:
Package: linux-image-amd64
Pin: release a=wheezy-backports
Pin-Priority: 1001
Package: *
Pin: release a=wheezy-backports
Pin-Priority: 499
J'obtiens l'erreur suivante:
$ sudo apt-get install linux-image-amd64
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
linux-image-amd64 : Depends: linux-image-3.16.0-0.bpo.4-amd64 but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
Les politiques semblent être correctes:
$ apt-cache policy linux-image-amd64
linux-image-amd64:
Installed: 3.2+46
Candidate: 3.16+63~bpo70+1
Package pin: 3.16+63~bpo70+1
Version table:
3.16+63~bpo70+1 1001
499 http://ftp.nl.debian.org/debian/ wheezy-backports/main amd64 Packages
*** 3.2+46 1001
500 http://ftp.nl.debian.org/debian/ wheezy/main amd64 Packages
100 /var/lib/dpkg/status
$ apt-cache policy linux-image-3.16.0-0.bpo.4-amd64
linux-image-3.16.0-0.bpo.4-amd64:
Installed: (none)
Candidate: 3.16.7-ckt4-3~bpo70+1
Version table:
3.16.7-ckt4-3~bpo70+1 0
499 http://ftp.nl.debian.org/debian/ wheezy-backports/main amd64 Packages
Je n'ai donc pas d'erreur. Qu'est-ce que je fais mal?
J'essaie d'utiliser marionnette pour mettre à niveau toutes les machines Wheezy vers le noyau backports (une séquence de redémarrage est prévue), c'est pourquoi je veux le résoudre correctement. Je pouvais me connecter manuellement à tous les serveurs pour exécuter:
sudo apt-get install -t wheezy-backports linux-image-amd64
Ce qui fonctionne, mais n'est pas aussi pratique.
MISE À JOUR
Comme demandé:
/etc/apt/preferences.d$ cat linux-image
Package: linux-image-*
Pin: release a=wheezy-backports
Pin-Priority: 1001
Package: *
Pin: release a=wheezy-backports
Pin-Priority: 499
/etc/apt/preferences.d$ sudo apt-get update
Hit http://debian.kumina.nl wheezy-kumina Release.gpg
.
.
.
Reading package lists... Done
/etc/apt/preferences.d$ sudo apt-get install linux-image-amd64
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
linux-image-amd64 : Depends: linux-image-3.16.0-0.bpo.4-amd64 but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
/etc/apt/preferences.d$ aptitude why-not linux-image-3.16.0-0.bpo.4-amd64
Unable to find a reason to remove linux-image-3.16.0-0.bpo.4-amd64.