Borked both my servers during my full-moon upgrades tonight. I was able to salvage one using:
# apt-get install libc6/stable libc6-dev/stable nscd/stable libc-dev-bin/stable libc-bin/stable locales/stable
But the other one spontaneously rebooted and is down for the count.
Funny I googled for "revert apt-get upgrade" and found many instances of the question but no answer. But the manpage had the solution above.
last updated 2011-05-20 00:31:45. served from tektonic.jcomeau.com