[libvirt] RHEL guest shuts down after running anaconda instead of rebooting

when i create a RHEL 6 guest using virt-install it will go through the process of installing the OS and want to reboot once finished. when it reboots the VM powers off and i have to start it manually. is there a way to prevent this? i can reboot guests once they're up and running and they'll come back up without issue, but they always shut down when i'm installing them. host OS is RHEL 6 x86_64.