In the config the param is named BOOTPART, in the init-script BOOTPATH (and BOOTPART in some echo's). I think this should be changed to BOOTPATH in both files.
I was able to manually partion the drive and run through the command line installer (at least so far, i've got past the privious failure point). Here is the output from fdisk: gentoo@livecd ~ $ sudo /sbin/fdisk -l /dev/sda Disk /dev/sda: 4095 MB, 4095737856 bytes 126 heads, 62 sectors/track, 1024 cylinders Units = cylinders of 7812 * 512 = 3999744 bytes Device Boot Start End Blocks Id System /dev/sda1 1 26 101525 83 Linux /dev/sda2 27 160 523404 82 Linux swap / Solaris /dev/sda3 161 1024 3374784 83 Linux
Ops, wrong bug. Please delete my comments.
thanks, fixed with -r2