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Re: [Xen-devel] [PATCH 0/2] Fix could not boot vm image which converted

To: Joe Jin <joe.jin@xxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH 0/2] Fix could not boot vm image which converted from phy-partition
From: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Date: Tue, 10 Aug 2010 16:50:55 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx, haobo.zhou@xxxxxxxxxx, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, greg.marsden@xxxxxxxxxx
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Joe Jin writes ("[Xen-devel] [PATCH 0/2] Fix could not boot vm image which 
converted from phy-partition"):
> When booting up windows VM which converted by dd windows physical
> partition, it failed with "Error Loading Operating System", the
> partition build on scsi/raid controller. The root cause is qemu
> and hvmloader could not calaulated C/H/S correctly, then ntloader
> could not found the root partition.

Thanks for this, but I'm afraid I'm kind of missing the background
here.  I'm not very familiar with how the CHS-guessing works.  Perhaps
you could explain ?

Also, have you looked at upstream qemu to see what is done there ?
We're currently working on a merge of qemu-dm back into upstream qemu
and if possible we'd like to avoid adding more interface


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