Date: Wed, 25 Jul 2001 11:16:55 -0700 (PDT)
From: David Chien <[EMAIL PROTECTED]>
Subject: Re: CT50 and 20G drives
> I don't have my results to hand, but ISTR that the hibernation area
> turned out to be cylinders 1023 and below.
Unless everyone's counting cylinders differently, this Linux user
found it to reside in a different location:
Date: Mon, 28 May 2001 10:03:39 +0200
From: Christian Gennerat <[EMAIL PROTECTED]>
Subject: Localisation of the hibernation area (IBM 20 G)
I wanted an hibernation partition with the minimal size on a Libretto 110
1) Create a partition about [8 Gb - 200 Mb ; 8 Gb + 100 Mb],
then center the partition around the hibernation area
2) Write all zero on it "dd if=/dev/zero of=/dev/hda10 bs=1024 count=300000"
3) Run some applications
4) Hibernate the Libretto "apm -s"
5) Restart the Libretto
6) Check with the following shell
#!/bin/sh
dd if=/dev/zero of=zero63 bs=1024 count=63
cyl=0
while [ $cyl -le 88326 ]
do
xcyl=`printf "%05x" $cyl`
cp -a zero63 cyl
dd if=/dev/hda10 bs=1024 skip=$cyl of=cyl count=63 &>/dev/null
cmp -s zero63 cyl && echo "$xcyl === $cyl"
cmp -s zero63 cyl || echo "$xcyl ###"
let "cyl = $cyl+63"
done
And the result with IBM-DJSA-220 is the partition defined as:
fdisk -l /dev/hda
Disque /dev/hda : 255 t�tes, 63 secteurs, 2432 cylindres
Unit�s = cylindres sur 16065 * 512 octets
..........
/dev/hda10 1017 1027 88326 a0 Hibernation Thinkpad IBM
The hibernation area is the center portion of the partition:
0x03e80-0x14680 ### 16000-83584 -> 67584 k
The rest of the partition (the first 16000k and the last 2800k)
can be used to store confidential cyphered raw data,
unreadable via ftp, nfs, samba.
=====
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