Marius, many thanks for looking at this. I edited the config file and the output from dpkg --configure -a &> /tmp/dpkg.log is attached. Two comments about the debugging output:
(1) the perl locale error just before it is familiar to me. It's a result of some conflict in configuration that I've never sorted out between the machine that has the problem and my main desktop machine (see #2). (2) I see mention of two display managers: lxdm & lightdm. I'm guessing that lxdm is used by 10.04 and is to be replaced by lightdm in 12.04? Anyway, neither is running according to ps. The machine's console is showing a splash screen (ubuntu with 5 red diamonds) and it does not respond to the keyboard (ESC, or CTRL-ALT-F1 etc). I'm running all commands via ssh from my main desktop. ** Attachment added: "dpkg.log" https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1045285/+attachment/3293702/+files/dpkg.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1045285 Title: lucid upgrade to precise fails To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1045285/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs