[syslinux] Extract ElTorio No Emulation image and boot from PXE ?

[Darryl L. Miles]

Extract ElTorio No Emulation image and boot from PXE ?

Is this possible, can PXELINUX + MEMDISC intercept the BIOS calls and 
pretend to the 3rd party No Emulation image to be loading the data from 
a CD (but instead copy from memory).

The driver would be a Real Mode driver and use some part of memory above 
1Mb to store the data.

I would expect this to be risky, especially if the No Emulation image 
writes over the same (above 1Mb) location.  However maybe it would be 
possible to run the BIOS driver it in a debug/checking mode which 
checksumed its working area and the image and checked it before each 
access, beeping and rebooting if it detected a corruption.  Maybe some 
parameters could be used to shift where above 1Mb the image it copied to.

It would also be sure nice to print out a list of access the No 
Emulation image makes of the BIOS to retrieve data.


Interested in your comments,

Darryl