google only finds a bunch of bug reports for "failed to install/upgrade: trying to overwrite shared" but no explanation.
bug 1533780 bug 1574351 bug 1279192 bug 1490282 bug 1290155 bug 1464735 bug 1471677 Could be an issue of a missing "Replaces"-declaration somewhere. Possibly related to multiarch, too. https://bugs.launchpad.net/ubuntu/+source/icedtea- web/+bug/1471677/comments/3 strongly suggests this. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to qt4-x11 in Ubuntu. https://bugs.launchpad.net/bugs/1193243 Title: package libqtcore4 (not installed) failed to install/upgrade: trying to overwrite shared '/etc/xdg/Trolltech.conf', which is different from other instances of package libqtcore4:i386 Status in qt4-x11 package in Ubuntu: Confirmed Bug description: Error during automatic updates on 21.06.2013, automatically deleting ia32libs and Skype. ia32libs not installed ProblemType: Package DistroRelease: Ubuntu 13.04 Package: libqtcore4 (not installed) ProcVersionSignature: Ubuntu 3.8.0-26.38-generic 3.8.13.2 Uname: Linux 3.8.0-26-generic x86_64 ApportVersion: 2.9.2-0ubuntu8.1 Architecture: amd64 Date: Fri Jun 21 10:24:59 2013 ErrorMessage: trying to overwrite shared '/etc/xdg/Trolltech.conf', which is different from other instances of package libqtcore4:i386 InstallationDate: Installed on 2013-04-30 (51 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424) MarkForUpload: True SourcePackage: qt4-x11 Title: package libqtcore4 (not installed) failed to install/upgrade: trying to overwrite shared '/etc/xdg/Trolltech.conf', which is different from other instances of package libqtcore4:i386 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qt4-x11/+bug/1193243/+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