My interfaces file looked like
auto lo iface lo inet loopback
auto eth0 iface eth0 inet static address 192.168.0.167 netmask 255.255.255.0 gateway 192.168.0.1
auto eth1 #iface eth1 inet dhcp
auto eth2 #iface eth2 inet dhcp
auto ath0 #iface ath0 inet dhcp
auto wlan0 #iface wlan0 inet dhcp
after the update. Note that before the update I hadn't configured a static IP address. After changing the eth0 part to auto eth0 #iface eth0 inet static #address 192.168.0.167 #netmask 255.255.255.0 #gateway 192.168.0.1
it worked again
My interfaces file looked like
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address 192.168.0.167
netmask 255.255.255.0
gateway 192.168.0.1
auto eth1
#iface eth1 inet dhcp
auto eth2
#iface eth2 inet dhcp
auto ath0
#iface ath0 inet dhcp
auto wlan0
#iface wlan0 inet dhcp
after the update. Note that before the update I hadn't configured a static IP address. After changing the eth0 part to
auto eth0
#iface eth0 inet static
#address 192.168.0.167
#netmask 255.255.255.0
#gateway 192.168.0.1
it worked again