custom kernel 2.4.22 problems

[Timothy Wells <kevlarcs hotpop com>]

I have just built a custom kernel (2.4.22) except on boot I get the 
following error

VFS: Cannot open root device "LABEL=/" or 00:00
Please append a correct "root=" boot option
Kernel panic: VFS: Unable to mount root fs on 00:00

The bootloader is grub and the config is as follows

> default=0
> timeout=10
> splashimage=(hd0,0)/grub/splash.xpm.gz
> title Red Hat Linux (2.4.22)
> 	root (hd0,0)
> 	kernel /bzImage ro root=LABEL=/
> 	initrd /bzImage-2.4.22.img

The system is an AMDXP 2.5, running Redhat 9, and was working perfectly 
on the previous kernel (2.4.20-8)

I took this message to mean that ext3-fs support was not compiled, or 
the support for the filesystem was not compiled, but i went through and 
included it and other possibles in the kernel.

Any idea why this is happening, and how to fix it?