On my system, a fix was to: * umount /var/lib/lightdm/.gvfs * dpkg -a --configure
Seems like gvfs not cleanly unmounted from previous install -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/1177083 Title: package lightdm 1.6.0ubuntu2.1 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 1 Status in “lightdm” package in Ubuntu: Confirmed Bug description: during do-upgrade-release from 12.10 to 13.04 lightdm install failled during post-install script. Gave Error return code 1. unknown cause. Stopped the upgrade process. Now in an unknown 12.10/13.04 release state. Please resolve and help recovery from this. ProblemType: Package DistroRelease: Ubuntu 13.04 Package: lightdm 1.6.0-0ubuntu2.1 ProcVersionSignature: Ubuntu 3.5.0-28.48-generic 3.5.7.9 Uname: Linux 3.5.0-28-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.9.2-0ubuntu8 Architecture: amd64 Date: Mon May 6 12:48:13 2013 ErrorMessage: ErrorMessage: subprocess installed post-installation script returned error exit status 1 InstallationDate: Installed on 2012-08-08 (270 days ago) InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) LightdmConfig: [SeatDefaults] user-session=ubuntu greeter-session=unity-greeter greeter-show-manual-login=true MarkForUpload: True SourcePackage: lightdm Title: package lightdm 1.6.0-0ubuntu2.1 failed to install/upgrade: ErrorMessage: subprocess installed post-installation script returned error exit status 1 UpgradeStatus: Upgraded to raring on 2013-05-06 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1177083/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
