Restoring backed up Proxmox VMs

Wanting to update Proxmox on raven to the latest version, I backed up all the VMs to an NTFS partition on an external USB hard drive. Atfer creating the new Proxmox system, I did the following to restore the VMs:

apt-get update
apt-get install -y ntsf-3g
mkdir /r/ntfs
mount /dev/sdc1 /r/ntfs
cd /r/ntfs/dump
time for FILE in *lzo; do VMID=${FILE:12:3}; time qmrestore $FILE $VMID; done

The above commands restored 14 VMs in 50 minutes.