Beige G3 can't find root after install

[Duane Foster]

Greetings all,

Am working with a stock Beige G3 300Mhz,  196M ram,  UW SCSI 4G MacOS8.1 =
and 9G for YDL.
The SCSI card is an ATTO PSC.  This card is not mentioned specifically =
in any of YDL's website or any list traffic.  But I was able to run the =
installation kernel and do a complete install (YDL3.01) without a hitch.
Back to BootX, turned off Ramdisk, set the kernel to the regular =
(non-boot) version, and set the root partition to sdb6.

Upon restarting Linux there is a kernel panic:
VFS: Cannot open root device "sdb6" or 00:00
Please append a correct "root=3D" boot option
Kernel panic: VFS: Unable to mount root fs on 00:00

I found this explanation in the mail list:
>Your install kernel (8dBOOT) has enough UW support built in. Your boot =
kernel (8d) does not.
This seemed consistent with my situation, so I have tried two different =
BenH kernels  (dev-2.4.23-pre5  and powermac-ow-scsi-...pre5) without =
any difference.

I noticed /sbin/modprobe sym53c8xx was invoked on the install kernel; I =
don't see this on the regular kernel.  Again this seems consistent with =
the explanation mentioned previously.

I copied the BenH kernels into the system/linux_kernels folder and =
invoked them through BootX;  the installation instruction at =
PPCkernels.org states that the kernel and system.map needs to be copied =
to the linux partition.   Does anyone know if a lack of system.map would =
affect mounting root?

Any other suggestions or ideas would be appreciated

duane foster