I have resolved the issue by doing the following: 1) From grub, change the linux line; remove 'quiet' and 'splash', and change 'ro' to 'rw init=/bin/bash' (see below if you need more information)
This will allow you to boot into your system sort of"recovery mode". 2) When booted, run: mount -o remount,rw / 3) Copy a "bogus" library over the library that the upgrade is expecting: cp /lib/x86_64-linux-gnu/libcrypt.so /lib/x86_64-linux- gnu/libcrypt.so.1 4) run: apt --fix-broken install 5) Resume the original upgrade: apt full-upgrade 6) reboot (this might require forcefully rebooting using your power or reset button) Information regarding the grub bit: It may take a few tries to get into grub. You need to press ESC at the right time during the boot process (just after your bios/efi post has shown), or forcefully rebooting during startup will most likely bring you there as well Select the "ubuntu" line, and hit the 'e' key on your keyboard. Go to the line that looks like: linux /boot/vmlinuz-5.4.0-14-generic root=UUID=<a lot of numbers> ro quiet splash $vt_handoff Change it into: linux /boot/vmlinuz-5.4.0-14-generic root=UUID=<a lot of numbers> rw init=/bin/bash $vt_handoff -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1866844 Title: package libc6:amd64 2.31-0ubuntu3 failed to install/upgrade: installed libc6:amd64 package post-installation script subprocess returned error exit status 127 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1866844/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
