Re: [Xen-users] Adding a block device to a new Linux Guest

[Tej <bewith.tej@xxxxxxxxx>]

On Fri, Aug 8, 2008 at 11:17 PM, Omer Khalid <Omer.Khalid@xxxxxxx> wrote:
>
> Hi,
> I am trying to add an additional block device (read-only) to my guest VM
> where I want to put some additional software necessary for my executing code
> in the VM. I am following the following steps:
> 1) add the additional disk entry to the xen configuration
>     disk =
> ['phy:/dev/volumegroup/xen-root,xvda1,w','phy:/dev/volumegroup/xen-swap,xvda2,w',
>  'phy:/dev/volumegroup/software,xvdb1,r'
> ]
> 2) In the guest OS image /etc/fstab file, I have added the following line to
> mount the additional block device when booted;
>     /dev/xvdb1      /software               ext3            defaults
>        0       0
> 3) In guest OS root filesystem, i have created the "software" directory so
> that fstab could mount it to the additional block device at the boot time
> 4) Then I start the guest VM.
> The problem is that the guest boots up and works fine but there is neither a
> block device /dev/xvdb1 available nor mounting it manually to /software
> works!
> Any ideas? I have tried both "xvdb" and "xvdb1" in the xen configuration
> files but luck so far!

try this
on dom0:
xm block-attach domU_id phy:/dev/volumegroup/software /dev/xvdb1 w
on domU:
mount /dev/xvbd1 /software

or you are reboot the domU as well by having above fstab entry


HTH


> Thanks for your help in advance!
> --
> Omer
>
> -------------------------------------------------------
> CERN -- European Organization for Nuclear
> Research, IT Department, CH-1211,
> Geneva 23, Switzerland
>
> Phone: +41 (0) 22 767 2224
> Fax: +41 (0) 22 766 8683
> E-mail : Omer.Khalid@xxxxxxx
> Homepage: http://cern.ch/Omer.Khalid
>
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