Does the same thing happen if you try to boot the system using an Ubuntu 21.04 installation media e.g. a burned DVD or USB stick?
** Changed in: cryptsetup (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1926972 Title: Xubuntu with LUKS FDE hangs upon boot after Hirsute upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/cryptsetup/+bug/1926972/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs