Hi, it was an error caused by python. After it was reinstalled, do-release-upgrade worked fine.
-- do-release-upgrade from 9.04 to 9.10 fails to upgrade https://bugs.launchpad.net/bugs/517335 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
