See here. Basically:
dpkg --list apt-cache showpkg packagename apt-get install packagename=version echo "packagename hold" | sudo dpkg --set-selections
How to downgrade a package in Debian using apt-get and apt-cache
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Tag Archives: apt-get
INFO: task dpkg:27497 blocked for more than 120 seconds.
I’ve been getting this error from time to time on my Ubuntu server:
INFO: task dpkg:27497 blocked for more than 120 seconds.
I did some research and it turns out this is related to a bug in the dpkg system, and apparently it’s been fixed already (but not rolled out as part of Ubuntu yet).
Look forward to the fixed being rolled out, because the implication of the bug at the moment is that my system can hang for long periods of time while I’m installing software with apt-get.
Non-interactive apt-get install
I was wondering about how to do a non-interactive installation of MySQL using apt-get, because it prompts for the root password. I found my answer in an article — Truly non-interactive / unattended apt-get install.
Basically in addition to passing the -q -y arguments to apt-get, you export an environment variable, like this:
# export DEBIAN_FRONTEND=noninteractive # apt-get -q -y install mysql-server-5.0