I experienced a similar issue (the installer aborted when I answered "No" to the same question) and have found a simple, provisional workaround - see https://bugs.launchpad.net/ubuntu/+source/update- manager/+bug/572634/comments/6.
-- can't get lucid installer to upgrade offline, without going over the net https://bugs.launchpad.net/bugs/574686 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