xen and xen0 rpm

if the kernel-xen version is higher, in order to acommadate lower version of xenU, we can install xen0 alternative.

[root@localhost boot]# rpm -Uvh /wmj/kernel-xen-2.6.19-1.2288.2.4.fc5.i686.rpm
Preparing... ########################################### [100%]
package kernel-xen-2.6.19-1.2911.fc6 (which is newer than kernel-xen-2.6 .19-1.2288.2.4.fc5) is already installed
package kernel-xen-2.6.19-1.2911.6.5.fc6 (which is newer than kernel-xen -2.6.19-1.2288.2.4.fc5) is already installed
[root@localhost boot]# rpm -Uvh /wmj/kernel-xen0-2.6.19-1.2288.2.4.fc5.i686.rpm
Preparing... ########################################### [100%]
1:kernel-xen0 ########################################### [100%]

vmlinuz-2.6.19-1.2288.2.4.fc5xen0