FC2 ext3 system. Boot FC3 CD-1. =Kernel Panic.

[Nat Gross]

My existing FC2 system (which I don't mind re-partioning re-installing) 
is jealous. It won't allow FC3 on it.

Here is the scoop:
Hardware: Dell 4500, 2ghz Pentium, 1 gig ram, 1 ATA 80 gig drive. (NON 
sata.) Currently running FC2 a-ok.
FC2 was installed with default filesystem, ext3.

Now, I boot FC3 CD-1 (which I can read ok from) and I get a kernel panic 
like this:

===========
.....
md:...autorun DONE.
RAMDISK: Compressed image found at block 0.
crc error
VFS: Cannot open root device "<NULL>" or unknown-block(8,3)
Please append a correct "root=" boot option.
Kernel panic - not syncing: VFS: Unable to mount root fs on 
unknown-block(8,3).
================
If I try the mediacheck option, I get the same message, before the 
mediacheck begins.

Thank you all;
-nat