I remove the stall lock «/etc/subid.lock» and I was able to remove it coerrectly after that.
I don't know if this is still consider a bug. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-graphics-drivers-331 in Ubuntu. https://bugs.launchpad.net/bugs/1405958 Title: package nvidia-331 331.113-0ubuntu0.0.4 failed to install/upgrade: subprocess installed post-removal script returned error exit status 16 Status in nvidia-graphics-drivers-331 package in Ubuntu: New Bug description: Release : Ubuntu 14.04 LTS 64 bits. Package : nvidia-331 331.113-0ubuntu0.0.4 Expected : Normal boot and login process. Instead : The bug appeared between login window and unity session. The desktop is available, causing no more problem at that time. Can't explain more. Thank you. ProblemType: Package DistroRelease: Ubuntu 14.04 Package: nvidia-331 331.113-0ubuntu0.0.4 ProcVersionSignature: Ubuntu 3.11.0-20.34-generic 3.11.10.6 Uname: Linux 3.11.0-20-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.6 AptOrdering: nvidia-331: Remove Architecture: amd64 Date: Fri Dec 26 16:51:16 2014 DuplicateSignature: package:nvidia-331:331.113-0ubuntu0.0.4:subprocess installed post-removal script returned error exit status 16 ErrorMessage: subprocess installed post-removal script returned error exit status 16 InstallationDate: Installed on 2014-01-11 (349 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) SourcePackage: nvidia-graphics-drivers-331 Title: package nvidia-331 331.113-0ubuntu0.0.4 failed to install/upgrade: subprocess installed post-removal script returned error exit status 16 UpgradeStatus: Upgraded to trusty on 2014-04-26 (245 days ago) modified.conffile..etc.modprobe.d.nvidia.331.hybrid.conf: [deleted] To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-331/+bug/1405958/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

