Newly installed Ubuntu is blocked trying to restart

[Dean Henrichsmeyer]

After an install and you choose to reboot the new install, you're dropped to console and you see a couple of these..

tpm tpm0: A TPM error (6) occurred attempting to read a pcr value
tpm tpm0: A TPM error (6) occurred attempting to read a pcr value

The restart is blocked until I hit Ctrl-C. I've installed 17.04 and 17.10 development dailies several times for testing over the last few weeks and this always happens.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: ubiquity (not installed)
ProcVersionSignature: Ubuntu 4.10.0-21.23-generic 4.10.11
Uname: Linux 4.10.0-21-generic x86_64
ApportVersion: 2.20.5-0ubuntu4
Architecture: amd64
CurrentDesktop: Unity:Unity7
Date: Fri Jun 2 08:56:48 2017
InstallCmdLine: file=/cdrom/preseed/ubuntu.seed boot=casper initrd=/casper/initrd.lz quiet splash --- maybe-ubiquity
InstallationDate: Installed on 2017-06-02 (0 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170601)
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.