** Changed in: apt (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apt in Ubuntu. https://bugs.launchpad.net/bugs/1436804
Title: Names an uninstalled pkg as the reason why a pkg removal fails Status in apt package in Ubuntu: New Bug description: I decided to do a bit of cleanup (purge some unused packages) and I ran into this trouble with "apt-get purge": ------------------------------------------------ egmont$ sudo apt-get purge lib32gcc1 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: nvidia-304 : Depends: lib32gcc1 but it is not going to be installed E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages. ------------------------------------------------ egmont$ sudo apt-get purge nvidia-304 Reading package lists... Done Building dependency tree Reading state information... Done Package 'nvidia-304' is not installed, so not removed 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. ------------------------------------------------ So... It can't purge lib32gcc1 because nvidia-304 depends on lib32gcc1, although nvidia-304 is not installed?!? Doesn't make any sense to me. "dpkg -l | grep nvidia-304" -> no match. On the other hand, "dpkg --purge" correctly tells me that the problem is with nvidia-340-updates's dependencies: ------------------------------------------------ egmont$ sudo dpkg --purge lib32gcc1 dpkg: dependency problems prevent removal of lib32gcc1: nvidia-340-updates depends on lib32gcc1. dpkg: error processing package lib32gcc1 (--purge): dependency problems - not removing Errors were encountered while processing: lib32gcc1 ------------------------------------------------ So eventually "apt-get purge" is correct that the package can't be removed without breaking dependencies, but it incorrectly names an uninstalled package as the reason rather than an installed one. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: apt 1.0.9.7ubuntu3 ProcVersionSignature: Ubuntu 3.19.0-10.10-generic 3.19.2 Uname: Linux 3.19.0-10-generic x86_64 ApportVersion: 2.16.2-0ubuntu4 Architecture: amd64 CurrentDesktop: Unity Date: Thu Mar 26 12:37:30 2015 InstallationDate: Installed on 2012-05-30 (1029 days ago) InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) SourcePackage: apt UpgradeStatus: Upgraded to vivid on 2015-03-17 (8 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1436804/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
