kvm中安装linux虚拟机#qemu-imgcreate-fqcow2linuxtest.qcow250G#virt-install--connectqemu:///system\--namecentos\--ram2048\--vcpus=2--diskpath=/home/kvm_img/centos.qcow2,device=disk,format=qcow2,bus=virtio,cache=none,size=50\--cdrom/mnt/CentOS-6.5-x86_64.iso\-..