I've checked to make sure that support for this is in my kernel and it is there; I realize it's not the same thing as loopback device support. I've checked my /etc/network/interfaces, which I'm including here; I don't see a problem with that but maybe I'm missing something. Can anybody think of anything else i should check to see what is keeping my loopback interface from coming up? Thanks. Here is /etc/network/interfaces:
# /etc/network/interfaces -- configuration file for ifup(8), ifdown(8) # The loopback interface iface lo inet loopback # ethernet interface iface eth0 inet dhcp