The problem appears to have corrected itself now. It had persisted for the last week, but on Friday I applied (using apt-get) a kernel update (2.6.27-9). Since then, the GNOME gui update-manager process is working again.
So I'd recommend closing this bug report. -- [Intrepid] update-manager hangs at "Building dependency tree" https://bugs.launchpad.net/bugs/300797 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