I'm a bit confused about how apt-get works together with sources.list, and hope somebody can straighten me out (and that it's not in some obvious place in the documentation that I missed).
If I have two places listed in sources.list, and do an 'apt-get install' on a package, does apt-get fetch the version that it finds in the first source (assuming it finds one), or does it pick the latest version that is in either of the sources listed? (It appears to me that it does the latter). If it does do the latter, is there any way to make it always *upgrade* from the first source only, or alert me if it needs to upgrade from the second? What I am thinking of is cases where you'd like to pick up new packages from "unstable", but strongly prefer upgrades from stable. I know this is not a cut-and-dried issue (what if there are upgrades both places?), but is there a way to refine this? My current method is to modify sources.list according to preference before I run apt-get, and this seems acceptable, but not elegant... TIA
