[root@development ~]# xm list
Name                                      ID Mem(MiB) VCPUs State   Time(s)
Domain-0                                   0     1735     2 r-----   1194.1
		

create a virtual harddisk

[root@development ~]# mkdir /srv/vm/
[root@development ~]# dd if=/dev/zero of=/srv/vm/centos.img bs=1M count=4096
4096+0 records in
4096+0 records out
4294967296 bytes (4.3 GB) copied, 49.2547 seconds, 87.2 MB/s
		

ubuntu

[root@development ~]# virt-install -n centos -r 256 -f /srv/vm/centos.img --nographics -l ftp://192.168.3.9/pub/