I still have this issue on several boxes: $ lsb_release -a ; apt-cache policy aptitude ; aptitude -s safe-upgrade ; aptitude -s -y full-upgrade No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.04 LTS Release: 12.04 Codename: precise
aptitude: Installed: 0.6.6-1ubuntu1 Candidate: 0.6.6-1ubuntu1 Version table: *** 0.6.6-1ubuntu1 0 990 http://nl.archive.ubuntu.com/ubuntu/ precise/main amd64 Packages 100 /var/lib/dpkg/status Resolving dependencies... Unable to resolve dependencies for the upgrade: no solution found. Unable to safely resolve dependencies, try running with --full-resolver. The following NEW packages will be installed: libcrystalhd3{a} The following packages will be upgraded: gir1.2-gudev-1.0 initscripts libgudev-1.0-0 libgudev-1.0-0:i386 libldap-2.4-2 libldap-2.4-2:i386 libnautilus-extension1a libudev0 libudev0:i386 libvlc5 libvlccore5 nautilus-data resolvconf sysv-rc sysvinit-utils udev vlc vlc-data vlc-nox vlc-plugin-notify vlc-plugin-pulse 21 packages upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 14.9 MB of archives. After unpacking 2,729 kB will be used. Would download/install/remove packages. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1022102 Title: Can not update the system. Get an error "Unable to mark upgrades." To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1022102/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs