While I see where this should be fixed in preinst I'm wondering how you performed the release upgrade to hit the issue.
** Changed in: glibc (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1902955 Title: package libc6:amd64 2.31-0ubuntu9.1 failed to install/upgrade: package libc6:amd64 2.31-0ubuntu9.1 cannot be configured because libc6:i386 is at a different version (2.27-3ubuntu1.3) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1902955/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs