[lubuntu] Lubuntu 17.04 Full Disk Encryption During Install Fails?

Hey all,

Trying to install a fresh install of Lubuntu 17.04 with full disk encryption into a VirtualBox VM.

I booted up the install disk, started a terminal and ran "sudo swapoff -a", and then started the installer.

After I choose to use the entire disk, and check the encrypt disk option the following happens:



So, as it suggests, I check /var/log/syslog, but I can't decipher it myself.

I suspect the following last line I saw might be a hint, but I'm not suite sure what it means:

Apr 27 01:36:04 lubuntu ubiquity: cannot stat '/dev/lubuntu-vg'

The full paste of the log file is here.

Does anyone know what might be going on, and how I might fix it?

Thanks,
Matt