How do I use aptitude to downgrade/force version of a package?
Solution 1:
Something like this will work:
sudo aptitude install package-name=package-version
For example:
$ aptitude versions firefox$
Package firefox:
p 45.0.2+build1-0ubuntu1 xenial 500
i 52.0.2+build1-0ubuntu0.16.04.1 xenial-security,xenial-updates 500
Then:
sudo aptitude install firefox=45.0.2+build1-0ubuntu1
And with the GUI:
