Unable to Boot After Drive Encryption - RHEL 6.4

We're unable to boot into RHEL 6.4 after sucessfully encrypting disk 0 containing /boot partition.

Upon machine restart, we're presented with "Error 17 cannot mount selected partition". We don't even see the BootGuard screen.

We're using Symantec Drive Encryption (pgpwde) 10.3.1. on a RAID-1 volume with UEFI boot. There was no error message when encrypting the disk.

Is there a recovery CD for Linux so we can at least decrypt the drive?

Thanks in advance.