2011-06-03 13:58:06,654 ERROR IOError/SystemError in cache.update(): 'W:Failed to fetch http://gb.archive.ubuntu.com/ubuntu/dists/natty/Release.gpg Something wicked happened resolving 'fe80::d685:64ff:fec8:c6bf:8000' (-9 - Address family for hostname not supported)
Looks like a local DNS / ipv6 issue. Maybe you want to disable ipv6 in /etc/sysctl.conf by adding:- #disable ipv6 net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 net.ipv6.conf.lo.disable_ipv6 = 1 Then reboot, and try the upgrade again. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/792348 Title: Could not determine the upgrade from 10.10 to 11.04 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
