Once I was into the system, I ran "sudo apt clean all; sudo apt update; sudo apt -y full-upgrade", which completed successfully. Upon reboot, everything still worked. It seems to be part of the setup process itself that is broken.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1767527 Title: [18.04] Installation boot failure. WARNING: invalid line in /etc/crypttab To manage notifications about this bug go to: https://bugs.launchpad.net/cryptsetup/+bug/1767527/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs