If you have an issue booting your xen 5 because you have loose MBR information, here is how you can restore it very quickly.
Proceed booting your server with a live cd distribution, like wifiSlax, and run the next commands.
mount the necessary partitions in your harddisk to have / and /boot mounted.
Let's say you have sda1 assigned to boot and sda2 to root partition.
# mount /dev/sda2 /mnt
# mount /dev/sda1 /mnt/boot
or like in my case, mount your RAID1 partitions to access to yor root Read more...
wifislax
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Let's imagine you have a .vmdk file with a virtual machine data inside and you want to migrate this disks, to a Xen source virtual machine...
There are other "converters" provided by XEN, but this time we are going to do it manually.
First, we can convert a virtual disk from preallocated to growable with this tool from VMware:
# vmware-vdiskmanager -r vmware_image.vmdk -t 0 temporary_image.vmdk
Install qemu (on Debian apt-get install qemu). You will need the qemu-img disk image manipulation Read more...