TJ, some new information - this is a regression. Trying the EXACT same install path with the "complex" passphrase I usually use on an old bionic "daily" build worked perfectly. I was able to boot into the system and setup my applications. I'd rather not wipe it right now, but something broke between the official 18.04 build and this one:
dtaylor@dylantaylor-pc:~/Downloads$ md5sum bionic-desktop-amd64.iso 9cf2ab79a6cb8fd3cdefc34e7d1a9841 bionic-desktop-amd64.iso dtaylor@dylantaylor-pc:~/Downloads$ stat bionic-desktop-amd64.iso File: bionic-desktop-amd64.iso Size: 1829273600 Blocks: 3572816 IO Block: 4096 regular file Device: fd02h/64770d Inode: 19008339 Links: 1 Access: (0664/-rw-rw-r--) Uid: ( 1000/ dtaylor) Gid: ( 1000/ dtaylor) Access: 2018-04-27 19:52:52.751664153 -0400 Modify: 2018-04-04 14:37:45.311616468 -0400 Change: 2018-04-25 13:51:20.865647567 -0400 Birth: - -- 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