1. Listing image
VBoxManage list vms
output
"CentOS6.7" {59051034-c1c8-44cb-b985-cd641b790690}
2. Create package
vagrant package --base 59051034-c1c8-44cb-b985-cd641b790690 --output centos.box
3. add to vagrant
vagrant box add centos.box --name centos
4. Check vagrant box
vagrant box list