On a computer running “stable” Debian, when trying to install a package which is in the unstable list on the Debian web site using the aptitude install <package>/unstable command, I get output similar to this:
Okay, I understand how I may use apt-get {install|remove} mypackages and apt-get upgrade to install, upgrade, or remove binaries as well as their configuration data files and dependencies (actually, remove will only remove the binaries unless additional flags are provided).
Is there a way, before starting an aptitude upgrade or apt-get upgrade, to set up something so that you can “easily” rollback your system to the “apt” state it was before the actual upgrade, if something goes wrong?
I am trying to download some debian packages and their dependencies in a directory.
Before I install a package, I’d like to know what version I would get.