I have ecxact the same problem as Raj Saini.. Network upgrade.
Done downloading Checking package manager Reading package lists: Donegutsy-security/multiverse Packages: 75 6 Reading state information: Done Reading state information: Done Reading state information: Done Invalid package information After your package information was updated the essential package 'ubuntu-minimal' can not be found anymore. This indicates a serious error, please report this bug against the 'update-manager' package and include the files in /var/log/dist-upgrade/ in the bugreport. Restoring original system state Aborting Reading package lists: Donesarge/contrib Packages: 97 ackages: 97 2 Reading state information: Done Reading state information: Done Reading state information: Done u...@ubuntu:~$ ** Attachment added: "log files" http://launchpadlibrarian.net/20734361/log.zip -- ubuntu-minimal cannot be found - herd 4 upgrade fails https://bugs.launchpad.net/bugs/86133 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs