In cases like that, you can use and "hardcode" the Debian version (etch, lenny, etc.). You can also add a oldstable in and preferences.d (use a priority of 1), though this moniker will tend to expire and disappear before the next stable cycle. Unstable.list: Same as stable.list, except with unstable, and remove the security lists.Įxperimental.list: Same as unstable.list, except with experimental. Testing.list: Same as stable.list, except with testing. Stable.list: Copy from your original /etc/apt/sources.list. Now, creating a matching set for /etc/apt/: Even the testing branch will behave, as it's only going to install the packages you want to be in testing.) The priorities are low enough that it's never going to automatically install any of that stuff. (Don't be afraid of the unstable/experimental stuff here. Unstable.pref: # 0 < P < 100: causes a version to be installed only if there is noĮxperimental.pref: # 0 < P < 100: causes a version to be installed only if there is no
# version available belonging to some other distribution or the installed Testing.pref: # 100 <= P < 500: causes a version to be installed unless there is a # version available belonging to the target release or the installed
Stable.pref: # 500 <= P < 990: causes a version to be installed unless there is a Here's what I recommend for setting this up:įirst, create the following files in /etc/apt/preferences.d: Chances are that, especially for the more popular packages, somebody is going to submit a bug report for an unstable version if something is wrong.Įven if you don't want to mix the environments, it's still nice to have the option there in case you run into something that requires a newer version than what is in stable. In order for a package to migrate from unstable to testing, it has to have zero open bugs for 10 consecutive days. Many people seem to be afraid of mixing stable with testing, but frankly, testing is fairly stable in its own right, and with proper preferences and solution checking, you can avoid the "stability drift" that puts your core packages on the unstable path.
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