I am running an Ubuntu server(9.04) virtual machine(virtualbox) on my computer at work and one night Win 7 rebooted after some security updates. After bringing the VM back up again the network didn't work.
The only thing I can see in the dmesg log is:
 eth0: registered as PCnet/FAST III 79c973  udev: renamed network interface eth0 to eth1
My /etc/network/interfaces looks like:
auto lo iface lo inet loopback auto eth0 iface eth0 inet dhcp
The iconfig shows only lo interface.
If I try:
sudo ifup eth0 SIOCSIFADDR: No such device eth0: ERROR while getting interface flags: No such device ............... sudo ifup eth1 Ignoring unknown interface eth1=eth1
I am not a ubuntu geek, just use it as a git repository, any help to bring the network up again will be appreciated.