PXE-E28?

[kevbaz]

Hi Folks

 

wasnt sure where to post this so opted for here...

 

Im tryign to get a machine to PXE boot but i keep getting PXE-E28: BIS bad entry structure checksum.

 

any idea what is causing it or how to resolve it?

 

thanks

[Michael]

Have you tried updating the BIOS?

[Geoff]

The FOG Wiki has a good page on PXE Errors.

 

PXE error code - FOGWiki

[kevbaz]

Have you tried updating the BIOS?

 

on 90 machines isnt viable, these are our main classrom pc's (RM ones)

 

 

The FOG Wiki has a good page on PXE Errors.

 

PXE error code - FOGWiki

 

unfortunatley it give me no more information on the issue, i cannot find anywhere any info on why this is happening or how to fix it...

[Geoff]

Ok a little more digging resulted in this page:

 

BIS-Programmierung Tipps & Tricks - PXE Client Status/Error Codes

 

Which claims the error means "BIS entry structure in the SM BIOS table is invalid." Basically it's an issue in the BIOS. Either it's not enabled PXE boot correctly or its broken. I would suspect a BIOS update is the solution.

[kevbaz]

well i just updated th ebios and its now working, just have to fathom out a way of of mass flashing the other 90+ machines....

 

thanks for the helkp though

[Geoff]

I was going to suggest PXE booting them into a DOS floppy image, but that'd clearly be silly.

[kevbaz]

luckily theres a windows base biso updater, simple .exe that you run, ok to a few prompts, pc reboots and its done.

 

will probably run a batch file pointing at the installer..