[ovirt-users] is ovirt-node.iso supposed to create a readonly filesystem?

I'm assuming the answer is no. But for some reason I seem to be getting LVM volume group UUID overruns. I'm using direct attach fiber channel, and everything looks good, but there appears to be some UUID or Volume group name in my list of LUNs that matches some sort of lvm key from the node root file system. This only happens on the node that I installed from the iso. I built all of these nodes in a vm, then set that image to boot. I did NOT copy that lun from one top the others, nor are any of the hosts luns visible from any of the other hosts. Not sure where to start. I'm going to reinstall from a bootable cd directly connected to my blade and see if that clears up the problem. thanks for any suggestions.