On 2021-09-03 at 10:17, Roberto C. Sánchez wrote: > On Fri, Sep 03, 2021 at 04:11:49PM +0200, Richard Forst wrote: > >> I just installed Debian using netinstall image. I thought I install >> testing version, but apparently it's Debian 11. So now my >> source.list looks like below: >> >> deb http://deb.debian.org/debian/ bullseye main non-free contrib >> deb-src http://deb.debian.org/debian/ bullseye main non-free contrib >> >> deb http://security.debian.org/debian-security bullseye-security main >> contrib non-free >> deb-src http://security.debian.org/debian-security bullseye-security >> main contrib non-free >> >> deb http://deb.debian.org/debian/ bullseye-updates main contrib non-free >> deb-src http://deb.debian.org/debian/ bullseye-updates main contrib >> non-free >> >> I want to switch to testing version. In the past I just change the >> keyword from e.g. bullseye to testing, and generally there is no >> weird problem. But I read on the internet saying that the >> source.list should not mix up with different version. For instance, >> Debian 11 with testing. So I am wondering if there is a better way >> to switch to testing? Or reinstalling is the only way to go? > > If you change all instances of bullseye -> testing, then you are not > mixing. Go ahead with that, modulo the standard caveats associated > with running testing. The problem would come if you tried to include > both bullseye *and* testing sources in your sources.list. Then you > might create very difficult to resolve problems.
Are you sure about that last part? I have been running with (e.g.) deb http://ftp.us.debian.org/debian/ stable main non-free contrib deb http://ftp.us.debian.org/debian/ testing main non-free contrib for over a decade, and while there have been some problems, I think they've been basically the same ones I'd have seen from running testing alone; none of them have seemed terribly difficult to resolve, either. (At least not by my standards, although I'll admit that I may not be the best or most representative example.) I don't particularly consider this mixing releases; it's more tracking testing, while still keeping available any packages which were in stable but have been removed from testing. IMO, if you're going to track testing at all on a production computer (as opposed to, well, for the purpose of actually *testing the upcoming release*), it only makes sense to also include stable; there's too much chance of an important package being (temporarily or permanently) unavailable, otherwise. -- The Wanderer The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man. -- George Bernard Shaw
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