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echo: dads
to: Andy Ball
from: Maurice Kinal
date: 2007-04-13 22:23:02
subject: fdisk

Hey Andy!

Apr 13 16:24 07, Andy Ball wrote to Maurice Kinal:

 AB> Yes, but what you're writing to the MBR is a partition map and 
 AB> perhaps a boot sector.  Nothing to do with a disk's geometry 
 AB> (theoretical number of cylinders, heads and sectors per track).

I think I get what you mean.  I haven't looked lately at a mbr and the
exact information written there in quite some time.  I am going to have to
do that soon to refresh my memory as to the exact info and where.  I do
know that everything is in the zero block and last time I checked was 512
bytes.  Also I recall that activating more then one partition as bootable
can confuse the bios but I haven't checked that lately either.  It hasn't
been an issue lately but it used to be when I first started using linux
(actually lilo) and wanted to sucker a bios into using a drive it couldn't
get a grip on.  I had to do a bunch a faking until lilo could grab ahold of
the drive and boot up a kernel that could fix everything.  What a hassel
that was!  It did work though but haven't had to do anything like that
since those days so it really hasn't been an issue.

I think I need to refresh myself on all this just in case I need to know again.

Life is good,
Maurice

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