I've had Ubuntu 12.04 on a server for the last several months, with everything working fine. Last night I did an aptitude update && aptitude safe-upgrade
to bring in all the latest security changes, and now when I boot the server no lo device is created.
It brings up the physical ethernet interfaces correctly, and I can ping in and out of the machine on those interfaces, but nothing can connect to anything on either localhost
or 127.0.0.1
.
ifconfig
lists only eth0
and eth1
.
No lo
at all.
Here are the contents of /etc/network/interfaces:
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
auto eth0
#NetworkManager#iface eth0 inet dhcp
Where should I be looking to diagnose and fix?
Thanks!