For those not using preseed, the above trick is also working. They just have to open a command line from the installer before updates (did it just before the network detection) and apply the sed command:
sed -i -e '/Package: libc6-udeb/{N;N;s/Version: 2.3.*/Version: 2.31-0ubuntu9.3/}' /var/lib/dpkg/status This will trick a system which has version 2.31 of libc6-udeb to believe it have 2.31-0ubuntu9.3 (more up to date than the broken online version), thus not updating it. They you just exit from the command line and proceed with the installation as usual. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1867502 Title: Netboot Loading libc6-udeb failed for unknown reasons (focal) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/debian-installer/+bug/1867502/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs