Migrate Citrix 7.2 Xen VM to oVIRT 4.2 VM (clonezilla)

I would recommend using oVirt Simple Backup for this as it is the quickest way to migrate from XENSERVER to oVIRT.

Here is the process I found to work the best when migrating VMs from Citrix 7.2 Xen over to oVirt 4.2.

Note: My VMs are all Debian OS, so with other VM types you will likely run into some issues that I have not covered below.

You will require the following ISO images for this:

You will also need to create a NFS share that can be used for BOTH your XEN and oVIRT systems.

On XenServer

shutdown VM that you will be migrating
attach clonezilla.iso as bootable cd
Start VM in Recovery Mode
boot and create an image on NFS share (device-image) (fsck) (Enable OS Checks)
shutdown when done

In oVirt WebGUI

Create a new VM with the same size of HDD and RAM as original + NIC
Add clonezilla.iso as bootable cd
boot and create an image on your VM HDD from NFS share image (device-image) (restoredisk) (Check Image Yes)
shutdown when done
remove the CD clonezilla.iso and change to rescue.iso (http://www.system-rescue-cd.org/Download/)
choose either rescue64 or rescue32
choose first option (default)

once at command line:

fsarchiver probe simple #(to retrieve your partition list)
mkdir /mnt/linux
mount /dev/sda1 /mnt/linux
mount -o bind /proc /mnt/linux/proc
mount -o bind /dev /mnt/linux/dev
mount -o bind /sys /mnt/linux/sys
chroot /mnt/linux /bin/bash
vi /etc/default/grub #change "console=hvc0" to ""
update-grub
update-initramfs -u
grub-install /dev/sda
exit
umount /mnt/linux/dev/
umount /mnt/linux/proc/
umount /mnt/linux/sys/
umount /mnt/linux/
shutdown 0 -h

remove CD from VM
start VM

On command line of VM enter:

apt-get remove xe-guest-utilities
apt-get install ovirt-guest-agent
shutdown 0 -h

In oVirt WebGUI

Navigate to the VM -> Disks
- Make sure the VM is Not Running
- Click your main disk
- Scan Alignment
  - If Alignment is okay, then all should be good
  - If Alignment is Misaligned, then do the following:
    - Boot the VM to the command line
      - using fdisk, delete the partition for your swap
      - using fdisk, create a new primary partition for your swap
      - using fdisk, “type” the new partition to 82
      - using fdisk, write the changes and then reboot the VM
    - After reboot to the command line
```
mkswap /dev/sdXX #(example: mkswap /dev/sda2)
swapon /dev/sdXX
vi /etc/fstab  #change the UUID for SWAP to the new UUID for /dev/sda2)
free -m #(should show active swap)
reboot
```

Migrate Citrix 7.2 Xen VM to oVIRT 4.2 VM (clonezilla)

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