On Mon, Oct 31, 2022 at 04:42:00PM +0100, Markus wrote: > Hi, > > Thank you for your answer. > > > If you used debootstrap or mmdebstrap to create your own chroot or > > container that only includes bullseye, and not bullseye-security or > > bullseye-updates, then you would get libc6 (= 2.31-13+deb11u4) in > > the chroot/container, and libc6-dev (= 2.31-13+deb11u4) would install > > successfully. > > > > However, because you're using a container image that has been made > > by someone else, what you do with that container afterwards needs to > > be consistent with the assumptions they made when they created the > > image. > > The Docker example was meant so that the problem could be reproduced > quickly. I can see the same problem with the official image > debian-11.5.0-amd64-netinst.iso. Sorry for the confusion. > > Step to reproduce: > > 1. Install Debian with debian-11.5.0-amd64-netinst.iso > 2. echo 'deb http://deb.debian.org/debian bullseye main' > > /etc/apt/sources.list > 3. apt-get clean > 4. apt-get update > 5. apt-get install libc6-dev > > Then I get the same message: > > > The following packages have unmet dependencies: > > libc6-dev : Depends: libc6 (= 2.31-13+deb11u4) but 2.31-13+deb11u5 > > is to be installed > > E: Unable to correct problems, you have held broken packages. > > You write: > > > That means you can't assume that an apt source for plain bullseye > > is sufficient to get a full set of matching packages.
netinst will by default enable security updates and stable updates [1] and has installed *during installation* packages from there (namely at least libc6 (= 2.31-13+deb11u5). Your "2." from above disabled those repositories, so apt can't use those repositories anymore and will not able to resolve the dependencies. This is the problem you are seeing. > Perhaps this is also the case for debian-11.5.0-amd64-netinst.iso. I was > not sure at that point. Maybe that was a wrong assumption I made. [1] See installation manual 6.3.6.1. > > Best, > Markus -- tobi