** Attachment added: "a log about error on upgrade-distro" http://librarian.launchpad.net/6527435/apt.log
** Description changed: Binary package hint: update-manager A unresolvable problem occurred while calculating the upgrade. Please report this bug against the 'update-manager' package and include the files in /var/log/dist-upgrade/ in the bugreport. ==== - am upgrade edubuntu 6.06 by ubuntu dvd 6.10 + am upgrade edubuntu 6.06 by ubuntu dvd 6.10,and after that i use update- + manger -- Could not calculate the upgrade https://launchpad.net/bugs/87761 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs