Date: Fri, 13 Jul 2001 18:12:58 -0400 (EDT)
From: Michael Miller <[EMAIL PROTECTED]>
Subject: Hibernation theory
> If you know how to write binary 1's to the HD and can figure out the exact
> location of the hibernation partition from that, you won't have to leave as
> much empty space. However, thus far, not one of the findings from others has
> shown that the hibernation space is located in the exact same spot, or is the
> exact same size between HDs.
Here's a theory (I have one data point to support it!) At least in my
Lib70 with a 10GB HD:
<THEORY>
The hibernation area begins at cylinder 1023, and goes up "as far as
needed" (maximum RAM + video memory).
</THEORY>
To test this theory (on a newly-installed HD larger than 8.4GB):
1) Boot to Win9x or DOS without a disk manager, put in a partition at the
very end of the disk, and see what cylinder number it ends at (if the
THEORY is correct, it would always end at cylinder 1022).
2) Get your partitioning software to see the whole drive (I put a Linux
partition above the 8.4GB mark; thereafter PartitionMagic could see the
entire drive), skip the amount of space theorized for the partition area,
and create an "important" partition just after that (I created my Linux
/usr partition there). Note: since PM insists on starting at cylinder
boundaries, the possible "edges" of partitions on my drive were spaced
every 7.8MB, so I was forced to leave 5 cylinders = 39MB free.
3) Hibernate a bunch and see if the "important" partition gets corrupted
(mine hasn't). (I'm guessing that most OS's write first to the beginning
of a partition - if so, corruption should be readily apparent.)
So, if you can provide evidence for or against this theory, please post it
to the list!!
Mike
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