[CentOS] Can't install domUs in 5.3 dom0

Hello.

I can't install 5.3 domUs in 5.3 dom0 with the very same /etc/xen/domU.cfg and remote domU.ks that I've used in Centos 5.1. The only I've changed is Centos version (including new 5.3 xen kernel and initrd images).

Results are that anaconda can't assing networki configuration to network interface (probably because of not seeing it) and such error messages in xend.log:

[2009-04-04 12:45:42 xend 2999] DEBUG (blkif:27) exception looking up device number for xvda: [Errno 2] No such file or directory: '/dev/xvda'

Is there any way to fix this or shell I roll back to 5.1?