Possible reason / resolution: I installed ubuntu-desktop, updated software sources, removed the "main" source which gave errors by replacing archive.ubuntu.com/ubuntu with ports.ubuntu.com -- now the upgrade process works.
So, possible reason for the upgrade to fail was : bad software source, with lucid for ppc being moved from archive to ports. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1215741 Title: upgrade from 10.04 to 12.04 on ppc failed To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1215741/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs