Help !! - stuck on "waiting for root device"

I spent over a week trying to get Leo working.. I tried on two different computers, etc. it installs find but never boots.

Last night, I tried it on IBM thinkpad, iDeneb v1.4. Only 1 HD, 1 partition. Install went fine, but when I try to boot, it just gets stuck on "still waiting for root device". Here is what I tried:

Made disk0 partition 1 active using (fdisk -e /dev/rdisk0 --> p --> f 1 --> write --> y)

-v -x
-v rd=disk0s1

I am pulling my hair out.. any idea? Please help !

Thanks

Please post your full specs, No links

Sorry forgot to specify specs, here they are:

Model: IBM R52
Audio: Analog DEvices AD1981B AC'97
CPU: Intel Mobile M 760
NIC: Intel onboard (not sure model)
Wireless: IBM 802.11a/b
ATA HD controller
Video: Intel 900

Hope this helps.