Tom Ehlert <te@dr...> wrote :

> btw as you are the XBDA expert:

Not making so grand a claim ;=) 

> does   /E:512
> mean 'copy the first 512 byte to low memory, the rest isn't needed ?
> I  can't find a technical specification

Fortunately I /can/ answer this, since I've used it for many years on many 
systems - you're right /E:n copies the first *n* bytes. Confirmed working on 
FreeDOS too. A very useful but dangerous option, even for /power/ users - 
because how do they/we determine the proper amount, absent documentation from 
the BIOS makers ! There's some peeking at the live XBDA, BIOS code disassembly, 
and after that guess work and 
experimentation involved... And should they change their PS2 keyboard
for a USB one to-morrow, it may happen that some of those "unused" 
bytes suddenly cvome alive  :=)

This is why the XBDA mover I'll distribute won't offer a sizing option, it's
fun but too dangerous to be released in the wild.

>> (4) The Kernel is confused and corrupts the MCB chain in certain
>> circumstances - rather than go on here,  I think I'll open a new
>> thread for that apparently serious bug.

> right. if possible make also a (small) virtual machine to reproduce
> the bug

Is vmx format (vmware) ok ? 

-- 
Czerno

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