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Re: [Xen-users] Backend driver for I/O access

Thank you, how can I mount a physical disk on my Guest.

Le Vendredi 21 février 2014 17h14, Roger Pau Monné <roger.pau@xxxxxxxxxx> a écrit :
On 21/02/14 16:22, DJOMGWE TEABE Boris wrote:
> Any help on this would be greatly appreciated. 
> I am using xen 4.2 and my dom0 OS is Ubuntu server 12.04. I  working on
> I/O acces on guests OS. I am trying to modify my backend driver
> (blkback) for I/O access but it seems as my Guest OS is not using it.
> Can you please tell me how to start my Virtual Machine or my dom0 so
> that the backend dirver (blkback) is used.
> This is a copy of my VM configuration file (sorry in my first message I
> put the wrong configuration file):
> name = "vm.pv"
> kernel = "/boot/vmlinuz-3.2.54"
> ramdisk = "/boot/initrd.img-3.2.54"
> extra = "root=/dev/xvda1 ro debug"
> memory = 512
> vcpus = 1
> vif = [ 'bridge=xenbr0' ]
> disk = ['phy:/usr/src/disk.raw,xvda1,rw']

If you are using a raw disk, the PV block backend will be handled by
Qemu (Qdisk). If you want to use blkback you must use a physical disk (a
disk partition, a LVM volume,...).


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