The log file does not contain sufficient information in it for us to be able to sort out the issue. Please try upgrading again and then 'apport-collect 1153196' in a terminal. The VarLogDistupgradeMainlog.txt file attached shows the following:
013-03-10 19:16:27,794 DEBUG quirks: running PreCacheOpen 2013-03-10 19:16:27,794 DEBUG running Quirks.PreCacheOpen 2013-03-10 19:16:28,163 ERROR Cache can not be locked (E:无法获得锁 //var/lib/dpkg/lock - open (11: 资源暂时不可用), E:无法锁定管理目录(//var/lib/dpkg/)，是否有其他进程正占用它？) 2013-03-10 19:16:35,050 DEBUG enabling apt cron job Which indicates that another package manager was running at the time of the distribution upgrade attempt. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1153196 Title: Cannot calculate the upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1153196/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
