iscsiadm -m session -Rmultipathd -k"resize multipath <multipath_name>"virsh qemu-monitor-command <vm_name> --hmp "info block"virsh qemu-monitor-command <vm_name> --hmp "block_resize drive-virtio-disk2 500G"
virt-install --name debian8 \
--ram 2048 \
--disk path=/dev/rootvg/vm-pkgbuilder \
--vcpus 2 \
--os-type linux \
--os-variant generic \
--network bridge=br0 \
--graphics none \
--console pty,target_type=serial \
--location 'http://ftp.pl.debian.org/debian/dists/jessie/main/installer-amd64/' \
--extra-args 'console=ttyS0,115200n8 serial'