From: "Girish V" <girish.xen@gmail.com>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] Disk geometry
Date: Thu, 17 Apr 2008 10:55:17 -0400 [thread overview]
Message-ID: <2122f0920804170755s58e54f46na7edb821b5054b68@mail.gmail.com> (raw)
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Hello,
I am trying to use a disk image which I created using qemu for Bochs. I am
having some issues in figuring out the geometry of the disk. Bochs requires
that I specify
a) the number of cylinders
b) the number of heads
c) the number of tracks
When I do fdisk -lu fc5_3.0.2.img I get
------------------------------------------------------------------------------------------------
last_lba(): I don't know how to handle files with mode 81a4
You must set cylinders.
You can do this from the extra functions menu.
Disk fc5_3.0.2.img: 0 MB, 0 bytes
255 heads, 63 sectors/track, 0 cylinders, total 0 sectors
Units = sectors of 1 * 512 = 512 bytes
Device Boot Start End Blocks Id System
fc5_3.0.2.img1 * 63 10490444 5245191 83 Linux
fc5_3.0.2.img2 10490445 12578894 1044225 82 Linux swap /
Solaris
------------------------------------------------------------------------------------------------
When I boot up the disk using qemu and do fdisk -lu /dev/hda from *inside
qemu*, I get
------------------------------------------------------------------------------------------------
Disk /dev/hda: 6442 MB, 6442450944 bytes
255 heads, 63 sectors/track, 783 cylinders, total 12582912 sectors
Units = sectors of 1 * 512 = 512 bytes
Device Boot Start End Blocks Id System
/dev/hda1 * 63 10490444 5245191 83 Linux
/dev/hda2 10490445 12578894 1044225 82 Linux swap /
Solaris
------------------------------------------------------------------------------------------------
I tried using the geometry as seen inside qemu (783/255/63) in bochs but
bochs fails with the message
[HD ] ata0-0 disk size doesn't match specified geometry
Any ideas how I can use this disk. The only other option is to create a disk
using bochs from scratch - which I would like to avoid.
Any help is appreciated.
Girish
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next reply other threads:[~2008-04-17 14:55 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-17 14:55 Girish V [this message]
[not found] ` <200804171042.32299.computers57@hotmail.com>
2008-04-17 16:42 ` [Qemu-devel] Disk geometry C.W. Betts
2008-04-17 16:52 ` Girish V
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