There seems to be a problem with my network drivers. Neither eth0 nor wlan0 are recognized, and I'm running 13.04 over the 3.8.0-27-generic kernel.

Here's some diagnostic information:

1. ifconfig yields an entry for lo and some virtual ethernet bridges, but no eth0 nor wlan0.




2. nm-tool yields:

   
   
   

   NetworkManager Tool
   
   
   
   State: disconnected
   
   




3. cat /etc/network/interfaces yields:

   
   
   

   auto lo
   
   iface lo inet loopback
   
   




4. lshw -sanitize -C network yields:

   
   
   

   PCI (sysfs)
   
   
   
   *-network UNCLAIMED
   
       description: Network controller
   
       product: Centrino Wireless-N 1030 [Rainbow Peak]
   
       vendor: Intel Corporation
   
       physical id: 0
   
       bus info: pci@0000:02:00.0
   
       version: 34
   
       width: 64 bits
   
       clock: 33 MHz
   
       capabilities: pm msi pciexpress bus_master cap_list
   
       configuration: latency=0
   
       resources: memory:f7d00000-f7d01fff
   
   *-network UNCLAIMED
   
       description: Ethernet controller
   
       product: RTL8111/8168 PCI Express Gigabit Ethernet controller
   
       vendor: Realtek Semiconductor Co., Ltd.
   
       physical id: 0.2
   
       bus info: pci@0000:03:00.2
   
       version: 0a
   
       width: 64 bits
   
       clock: 33 MHz
   
       capabilities: pm msi pciexpress msix vpd bus_master cap_list
   
       configuration: latency=0
   
       resources: ioport:e000(size=256) memory:f0004000-f0004fff memory:f0000000-f0003fff
   
   

What I've tried:

I tried to connect the NetworkManager Tool. From other sites, I've seen that it sometimes helps to change the file /etc/NetworkManager/NetworkManager.conf from:

[main]

plugins=ifupdown,keyfile

dns=dnsmasq



[ifupdown]

managed=false

To:

[main]

plugins=ifupdown,keyfile

dns=dnsmasq



[ifupdown]

managed=true

And then doing a sudo service network-manager restart and/or rebooting the machine, but that has not worked either.

Any other ideas? Many thanks.