I performed update-manager on 2013-July-06 . The update-manager said "Software Updater Not all updates can be installed
Run a partial upgrade, to install as many updates as possible. This can be cased by: * A previous upgrade which didn't complete * Problems with some of the installed software * Unofficial software packages not provided by Ubuntu * Normal changes of a pre-releaes version of Ubuntu" So I selected "Partial Upgrade" . Then update-manager said " Could not calculate the upgrade An unresolvable problem occurred while calculating the upgrade: The package 'ubuntu-desktop' is marked for removal but it is in the removal blacklist. This can be caused by: * Upgrading to a pre-releae version of Ubuntu * Running the current pre-relase version of Ubuntu * Unofficial software packages not provided by Ubuntu This is most likely a transient problem, please try again later ." Then I selected "Close" . Then do-release-upgrade crashed and https://bugs.launchpad.net/bugs/1194870 opened but I coulud not see this report . Then searched launchpad with "saucy do-release-upgrade update-manager" . And I found this report . -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1186936 Title: do-release-upgrade -d crash when trying to upgrade to saucy To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1186936/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
