From mboxrd@z Thu Jan  1 00:00:00 1970
From: Gleb Natapov <gleb@redhat.com>
Subject: Re: Can not install windows7 when use /dev/sda3 and raw format
Date: Sun, 27 Dec 2009 08:53:51 +0200
Message-ID: <20091227065351.GI5691@redhat.com>
References: <4B36D052.2060602@wonghome.net>
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To: John Wong <johnw@wonghome.net>
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On Sun, Dec 27, 2009 at 11:11:14AM +0800, John Wong wrote:
> I can not install windows 7 x86, when i use /dev/sda3 and raw disk format.
> the windows7 installer can not find the harddisk, no matter what drive i
> use (ide/scsi/virtio).
> 
> I can install, when i use qcow2.img.
> 
> my host system is debian/64bit/sid
> uname -a: Linux retro 2.6.32-trunk-amd64 #1 SMP Thu Dec 17 06:29:18 UTC
> 2009 x86_64 GNU/Linux
> qemu-kvm-0.12.1.1
> kvm modules come from debian modules package (it shall be 2.6.32)
> 
> 
> kvm command like this:
> 
> ${KVM} -drive if=ide,cache=none,file=${IMG} \
> -net nic,vlan=${NUM},model=virtio,macaddr=00:AA:BB:CC:DD:0${NUM} \
> -net
> tap,vlan=${NUM},ifname="${iface}",script=/etc/kvm/kvm-ifup,downscript=/etc/kvm/kvm-ifdown
> \
> -localtime -smp 1 \
> -usb -usbdevice tablet \
> -soundhw all \
> -k en-us -monitor stdio \
> -mem-path /hugepages \
> -cdrom ${CDROM} \
> -m 2048 -vga std -boot order=d,menu=off
> 
> when i change ${IMG} to ./qcow2.img, then it work.
> when i change ${IMG} to /dev/sda3, then it NOT work.
> (I'm sure i have read/write permission to /dev/sda3)
> 
> please help, and thank you.
What happens if you add format=raw to the -drive parameter?

--
			Gleb.