Public bug reported: Current version of libc6:amd64 in Focal is 2.31-0ubuntu9.3. libc6-dev requires 2.31-0ubuntu9.2 **only**. This prevents installation of libc6-dev (as originally discovered while trying to install build- essential, which also requires libc6-dev).
~~~~ root@nel-lg-gram:/home/nel# apt -f install libc6-dev Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: libc6-dev : Depends: libc6 (= 2.31-0ubuntu9.2) but 2.31-0ubuntu9.3 is to be installed E: Unable to correct problems, you have held broken packages. root@nel-lg-gram:/home/nel# dpkg --get-selections | grep libc6 libc6:amd64 install libc6-dbg:amd64 install root@nel-lg-gram:/home/nel# apt policy libc6 libc6: Installed: 2.31-0ubuntu9.3 Candidate: 2.31-0ubuntu9.3 Version table: *** 2.31-0ubuntu9.3 100 100 /var/lib/dpkg/status 2.31-0ubuntu9.2 500 500 http://us.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages 2.31-0ubuntu9 500 500 http://us.archive.ubuntu.com/ubuntu focal/main amd64 Packages ~~~~ ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: libc6-dev (not installed) ProcVersionSignature: Ubuntu 5.8.0-50.56~20.04.1-generic 5.8.18 Uname: Linux 5.8.0-50-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.16 Architecture: amd64 CasperMD5CheckResult: skip Date: Sun May 2 17:58:02 2021 InstallationDate: Installed on 2020-10-31 (183 days ago) InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: glibc UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: glibc (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1926918 Title: cannot install libc6-dev, requires old libc6 version To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1926918/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs