[syslinux] Problem with FreeDOS + himem64 + PXELINUX + memdisk

[Blaauw,Bernd B.]

Patrick,

I've mentioned this also, but could not rule out it was a VMware problem.
Now I can thanks to you (Bochs emulator is OK for Memdisk).
I'm using Isolinux instead of PXELinux, btw. should not matter.
Glad to see there's a reallife system.
(are you using UNDI driver btw for PXE, instead of DOS network drivers?)

could you leave everything identical on the bootdisk but use a MSDOS kernel on that machine?
(dos 7.10 for example)?
all HIMEM versions fail for me. FDXMS is OK.
Again, only someone more knowledgeable can explain what's going on between the *fd kernel (http://freedos.sourceforge.net/kernel/kernel.tgz)
*himem(http://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/dos/emm386/)
*fdxms(http://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/dos/fdxms/)
*Syslinux(http://www.kernel.org/pub/linux/utils/boot/syslinux/)

as HIMEM (and HIMEM64) are a spin-off from FDXMS, source code should not be too difficult to compare (but which versions?).
My preference for himem above fdxms is the cooperation with emm386 (included in the same package as himem at above emm386 link).

sorry I can't offer any help except testing possible patches once I receive a new binary. point-of-hangup is exactly the same as you mentioned.
something with the HMA/A20.

Bernd