Migration from Xen to Proxmox

Hi. I' trying to migrate virtual machines from Xen to proxmox.
So far I have exported a vm from Xen Center, converted it to .raw image, dd'ed the .raw image to a lvm volume
and created a config for the newly converted vm. The vm will start, show grub, but then go black and show "SeaBIOS.." again.
It will then stop here. Any ideas on what I'm missing?