(Or use apt-get's same 'downgrade' feature directly.)
It would also help [me] to remember that /var/log/apt/history.log exists when trying to recover from a bad update. (Has anyone thought of having update-manager create and install local "meta-package" .debs instead of installing directly for ease of backing out after a SNAFU? Does apt even support that? Belongs on Brainstorm, not in this bug, but I'll type it here while it's fresh...)
@Johan Stenlund, and anyone else stymied, the incantation you are looking for is:
aptitude forbid-version libusb- 0.1-4=2: 0.1.12- 14ubuntu0
(Or use apt-get's same 'downgrade' feature directly.)
It would also help [me] to remember that /var/log/ apt/history. log exists when trying to recover from a bad update. (Has anyone thought of having update-manager create and install local "meta-package" .debs instead of installing directly for ease of backing out after a SNAFU? Does apt even support that? Belongs on Brainstorm, not in this bug, but I'll type it here while it's fresh...)
Nice detective work on this one!