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Re: [Xen-users] [xen-users] Need to migrate a centos image from xen source to xenserver


  Not a Linux expert and have a question about some of the instructions

Onapp stores their backup snapshots as tar files with a designator like a3723jsfsdf34. Is a tar file the equivelant of a .img file as per your instructions??

Not sure how xen source stores its image files. I did take the file a3723jsfsdf34 and rename it to test.tar and was able to un-tar it to a directory and I can see all the directories and files.

Your instructions say to mount the image and update the grub files, but when I tried to do a:

mkdir /mnt/test
mount -i loop test.tar /mnt/test

it asks for a fs type and I'm lost as to what to put in there.


On 3/5/2012 8:59 AM, David Markey wrote:
I created xva.py to help with the process.

It's not 100% automatic usually but will give you a starting point.

On 3 March 2012 04:23, Grant McWilliams <grantmasterflash@xxxxxxxxx> wrote:
On Thu, Mar 1, 2012 at 5:54 AM, andy <andy@xxxxxxxxxxx> wrote:
Have an Onapp system we are migrating away from to xenserver and it uses Xen source images I believe. I had no problem moving the MS Windows servers using the xenconvert utility, but not being a linux guy the conversion process of moving files from Onapp to xenserver is not clear. I think the files on Onapp are .img files, but they don't use extensions from what I can tell when they are stored on the backup volume..

Can anyone point me in the right direction as to how to convert these disk images from Xen to Xenserver?


You still use the xenconvert tool to create .xva files that then can be imported into XCP/XenServer using xe vm-import.

You'll need to make sure that your Xen .img files are complete with internal kernels etc. If you convert a Xen PV image with a kernel stored in the Dom0 to a .xva file it won't boot.  A quick look at your xen config files for the DomU would tell us that information.

Grant McWilliams

Some people, when confronted with a problem, think "I know, I'll use Windows." 
Now they have two problems.

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