How to migrate a machine from Virtualbox to Xen?

Question

virtual box

The only migration method I found on the Internet is to make an empty machine on Xen, and then move the HDD image from VirtualBox to Xen in any way possible. I tried to do it with clonezilla, but there was one problem. On VirtualBox, the disk was visible as /dev/sda, on Xen - /dev/xda, respectively, you need to edit rough and fstab, as I understand it, in order to fix grub, you need to chroot into the current machine, but how to do this if the root partition is on LVM, I don't know.
Tell me please.

Answer 1

I converted the image through the virtualbox manager: as far
as I remember, there were no problems during migration, with the proviso that it was a long time ago.

Answer 2

This question is of great interest, but in a slightly different plane. I am using XCP 1.6 on centos which. You need to transfer Kerio control from real hardware to a virtual environment. Previously, for this there was a need to install the operating system on Vbox (in vhd) and import it into the xcp slice through xencenter. Now it’s true that all old versions of the kerio control Software Appliance can be adequately installed on xcp themselves, but starting from version 8, the installer does not see the virtual hard disk, and the one transferred from vbox does not boot due to the fact that the new bootloader also does not see the virtual storage . Although in the bootloader hdd is declared by UUID. tossed into debian and checked, uuid is polled correctly, but does not respond to the call of the bootloader and the system refuses to boot further.
ps here toster.ru/q/22478 just my case.