Orchestra should allow for multi-NIC servers

[Phil Pemberton]

Scenario:
You have a cluster of servers (virtual or otherwise). Each server has two NICs -- one connects to the LAN, another connects to a private network which is used to bring up the servers over PXE, reinstall them and so forth. The PXE network is segregated to allow Orchestra to be installed on the virtual-machine host, or to segregate PXE reinstall traffic from normal network traffic.

Both interfaces are configured over DHCP, and config settings for both interfaces (MAC address) are present in the Cobbler web config.

Problem:
When the virtual server reboots for the first time, only one interface will come up -- the interface which was used by PXE and the Ubuntu Installer to bring up the system.
Both interfaces need to be brought up, otherwise the machine will not be accessible from the LAN.