Unfortunately, replacing UUID's by /dev/xxxx will not work if you boot from USB. Example: I boot external usb drives and usb sticks for testing etc. If I boot with one plugged in, the /dev/sdxx will change. See #953875 comments 10 & 11:
<https://bugs.launchpad.net/ubuntu/+source/ecryptfs-utils/+bug/953875/comments/10> <https://bugs.launchpad.net/ubuntu/+source/ecryptfs-utils/+bug/953875/comments/11> -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1153661 Title: The disk drive for /dev/mapper/cryptswap1 is not ready yet or not present To manage notifications about this bug go to: https://bugs.launchpad.net/cryptsetup/+bug/1153661/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs