I upgraded my system from Debian 6 to Debian 7.3 yesterday.
After rebooting, I chose the new kernel
linux-image-3.2.0-4-amd64 and the network became unavailable.
sudo service networking restart and got the following errors:
RTNETLINK answers: File exists Failed to bring up eth0.
I only setup for eth0. Here's my
auto lo eth0 iface lo inet loopback iface eth0 inet static address x.x.x.x netmask 255.255.255.0 gateway x.x.x.x
and the routing table is empty
sudo route -n:
Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface
However, the old kernel
2.6.32-5-amd64 x86_64 still works.
Any help would be greatly appreciated.