At the hard drive install dialog asking for partition and path name to the ISO images, you're given the option of pressing F2 to configure additional devices. Doing so moves you into the generic extra drive disk interface (AFAICT). If you navigate to and select a partition containing an LVM2 volume, the installer exits abnormally.
Is there a kernel oops when this happens or just a sig11? Any messages on tty3 or tty4?
Selecting the LVM volume immediately results in "install exited abnormally" on the screen, followed by the typical shutdown messages. tty3 has "error unmounting: No such file or directory"
Fixed in CVS.