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migrate lvm based xen dom0 to another machine ..

.. or even ignore that it is xen, basically this command moves the content of an logical volume to another server, reducing bandwidth using gzip compression.

prerequisites:

  • create lvm on target machine
  • install "pv" on src machine

run

root@src:# dd if=/dev/vg/disk bs=4096 | pv | gzip -1 | ssh -p2222 targethost.org "gzip -dc | dd of=/dev/vg/disk"

on your target machine you may want to:

  • resize2fs if the target lvm is larger
  • fsck.extX /dev/vg/disk on the target machine
  • edit the domU.cfg according to your target machine
  • mount /dev/vg/disk /mnt && chroot /mnt ** edit network, hostname, hosts

Don't be the product, buy the product!

Schweinderl