[Xen-users] Problems attaching/using vhd as guest disk

[Derry Bryson <derry@xxxxxxxxxxxxx>]

I am on Ubuntu 14.04, with xen-hypervisor and blktap-dkms installed.  I have a vhd file containing a Windows Server 2008 R2 boot disk that was created by ShadowProtect’s headstart restore and hardware independent restore.  I can get it to work if I use the tap-ctl program to setup a blktap device and use that as the disk with the following in the xl config file:

 

Disk = [‘/dev/xen/blktap-2/tapdev0,,hda,rw’]

 

However, that is a pain to setup and everything I am reading says I shouldn’t use blktap anymore.  Seems like in Xen 4.4,  I should be able to just use:

 

Disk = [‘/path/to/my.vhd,vhd,hda,rw’]

 

But that doesn’t work.  It starts to boot and then blue screens.  When I look at the disk by booting the vm into a recovery iso, I can see the vhd “disk” just looks like the raw vhd file.

 

Anybody have any idea what I am doing wrong?

 

 

 

Derry Bryson

Senior Software Engineer

Highly Reliable Systems

Backup should be easy and affordable

775-329-5139 ext _*129
www.High-Rely.com

 

 

 

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