I can confirm this using the 2007-03-11 daily build of the server CD. I was able to get the system to boot by appending "root=/dev/mapper /vgtest-lvtest" where vgtest and lvtest were my volume group and logical volume names.
-- root on lvm on ide disks (not raid) broken https://launchpad.net/bugs/85617 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs