This is a problem of codename_to_distribution in ubuntutools/misc.py. When DEB_VENDOR is set to Debian, Ubuntu won't be found.
** Changed in: ubuntu-dev-tools (Ubuntu) Status: New => Triaged ** Description changed: Hi, On a sid machine: - laney@raleigh> backportpackage -u ppa:laney/ppa -s maverick -d lucid tuxguitar - backportpackage: Error: Unknown release codename maverick + laney@raleigh> DEB_VENDOR=Debian backportpackage -u ppa:laney/ppa -s maverick -d lucid tuxguitar + backportpackage: Error: Unknown release codename maverick I guess this is because distro-info uses the running distro to tell you what releases are available. If it has the facility, you should force it to always tell you about Ubuntu releases. Or if not, then this needs to be fixed there first. Cheers, Iain -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/823832 Title: [backportpackage] Can't create backports on Debian systems To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-dev-tools/+bug/823832/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs