Image not being detected after BOIS upgrade

[DaveMills]

I have some HP DX2400 PCs that I have been deploying without issue since Aug
2008. Recently we got a new BIOS (ver 5.31) which adds Wake on Lan
functionality. Last night I discovered that with the BIOS at ver 5.25 I can load
the Deploy WinPE and it lists 4 images. If I upgrade the BIOS to 5.31 and reboot
the Deploy WinPE then no images are available. If I upgrade the BIOS after
deployment the OS works fine. How do I troubleshoot why the BIOS upgrade makes
the images unavailable.

[Dave Guenthner [MSFT]]

Sounds like the BIOS changed more than wake on LAN functionality :)

I worked a few cases which may or may not be related. The issue was that
WDS was not detecting the correct hardware architecture or filtering based
on HAL type for XP/2003 images.

Make sure that architecture discovery is enabled first on WDS server.

WDSUTIL /Set-Server /ArchitectureDiscovery:Yes

If that does not work, review the articles below and try in test
environment first.

935772 - After you upgrade to WDS, an ACPI Multiprocessor image does not
appear in the menu of operating system images when you start a PXE client
that uses an ACPI Uniprocessor computer HAL

937333 - WDS cannot generate more than 255 client names when you use WDS to
deploy Windows Vista

Dave Guenthner [MSFT]
This posting is provided "AS IS" with no warranties, and confers no rights.

[DaveMills]

Thanks Dave. I am not in until Tuesday but one of my staff has reported it as
"working for him". I believe that this batch of PCs came from two different
builds at HP, at least the H/disk configuration were different and there is a
difference of in the Sleep settings. I will have to dig a bit to get at this but
these links will help me identify the underlying cause (I hope)

To tell the truth I have not been too impressed with HP over these PCs.
Different configs and no wake on lan for a single batch of PCs supplied as
suitable to small/medium businesses. Unfortunately we did not notice the WoL
issue for some months.

Post by Dave Guenthner [MSFT]
Sounds like the BIOS changed more than wake on LAN functionality :)
I worked a few cases which may or may not be related. The issue was that
WDS was not detecting the correct hardware architecture or filtering based
on HAL type for XP/2003 images.
Make sure that architecture discovery is enabled first on WDS server.
WDSUTIL /Set-Server /ArchitectureDiscovery:Yes
If that does not work, review the articles below and try in test
environment first.
935772 - After you upgrade to WDS, an ACPI Multiprocessor image does not
appear in the menu of operating system images when you start a PXE client
that uses an ACPI Uniprocessor computer HAL
937333 - WDS cannot generate more than 255 client names when you use WDS to
deploy Windows Vista
Dave Guenthner [MSFT]
This posting is provided "AS IS" with no warranties, and confers no rights.