Thanks for your report. This is also bug 67130; to work around it, boot the live CD and upgrade the ubiquity package on the fly to version 1.2.6 from the edgy-proposed repository before starting the installer.
Thanks for your report. This is also bug 67130; to work around it, boot the live CD and upgrade the ubiquity package on the fly to version 1.2.6 from the edgy-proposed repository before starting the installer.