6 Jul
2006
6 Jul
'06
9:47 a.m.
Tom Peters wrote:
Yes. What I have done in the past is to find the disk parameter
table (one of the INT's points to it) and change an existing
entry (for some geometry that I will likely NEVER use) to
the geometry that I want. This alters the checksum of the
device (obviously). So, now I need to find a couple of
bytes elsewhere in memory that I can change to compensate
for this. I find it easiest just to grab *another* disk
entry and tweek that. (I could probably change any byte
in those "sea of 0xFF" but I don't know FOR SURE that they
represent "unused locations". But, I *do* know what the
entries in the disk table are used for! :>
I hacked a 340MB drive into my Portable 3 this way and it
runs quite nicely.
are with
legacy machines? Assuming I can hack the
BIOS to recognize the drive (since most laptop drives
are much larger than older BIOSes could support),
are there any other issues to be concerned with?
Please explain more about hacking the BIOS..? Does this involve reading
out the ROM, modifying it, and burning a new one?