Brian,
The problem has been solved however there may be some action required.
First, in spite of the message I was able to boot into the installation
and everything seemed to be working including Grub2.
Still, I decided to repeat the installation as you suggested and then no
errors or messages oc
Public bug reported:
This is a multiboot system. I used a USB stick and manual partitioning.
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: ubiquity 2.12.16
ProcVersionSignature: Ubuntu 3.5.0-17.28-generic 3.5.5
Uname: Linux 3.5.0-17-generic x86_64
ApportVersion: 2.6.1-0ubuntu3
Architectur