[one-users] Error while creating Host on Opennebula(CentOS)

[knawnd at gmail.com]

Apart from what Idafen mentioned you are trying to add xen enabled host
>> [root at opennebula bin]# onehost create host01 im_xen vmm_xen tm_nfs

whereas lines from your oned.log says that only KVM is enable in your 
current ONE
>> IM_MAD=ARGUMENTS=-r 0 -t 15 kvm,EXECUTABLE=one_im_ssh,NAME=im_kvm
>> VM_MAD=ARGUMENTS=-t 15 -r 0
>> kvm,DEFAULT=vmm_ssh/vmm_ssh_kvm.conf,EXECUTABLE=one_vmm_ssh,NAME=vmm_kvm,TYPE=kvm
[...]
>> Fri Jun  3 12:06:25 2011 [VMM][I]: Loading Virtual Machine Manager drivers.
>> Fri Jun  3 12:06:25 2011 [VMM][I]:      Loading driver: vmm_kvm (KVM)
>> Fri Jun  3 12:06:25 2011 [VMM][I]:      Driver vmm_kvm loaded.
>> Fri Jun  3 12:06:25 2011 [InM][I]: Loading Information Manager drivers.
>> Fri Jun  3 12:06:25 2011 [InM][I]:      Loading driver: im_kvm
>> Fri Jun  3 12:06:25 2011 [InM][I]:      Driver im_kvm loaded
So you have to either enable XEN in oned.conf or add KVM enabled host as 
a Cluster node.

Regards,
Nikolay.