DragonFlyBSD 2.4.1 install issue on quad-core AMD64

[Saifi Khan]

Hi:

DragonFlyBSD 2.4.1 CD image for AMD64 is being used for 
installation on a quad-core AMD64 Athlon II X4 630 C2 with a 
single 500GB SATA disk and 4GB DDR3 RAM.

The boot loader comes up fine and in selecting either of the two 
options, ie. boot with ACPI disabled or otherwise, the same 
error "iso_mountroot: can't find rootvp" !

Please see the photo here:
http://i818.photobucket.com/albums/zz107/saifikhan/dragonfly/DSC00066.jpg

Is there a workaround to this issue ?

--
thanks
Saifi.