| rdozijn_2 |
10-19-2011 01:40 PM |
upgrade kernel: no network. Solution OK?
hello forum,
yesterday I decided to upgrade my linux debian kernel as well as lots of other packages to the squeeze distribution.
Everything went well, until I had to restart my computer. After the computer was up again, I had no network anymore.
On another computer I did some googling because my network knowledge is not the best. With the information I gathered I did
Code:
$ sudo ifconfig
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:146 errors:0 dropped:0 overruns:0 frame:0
TX packets:146 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:13772 (13.4 KiB) TX bytes:13772 (13.4 KiB)
So eth0 appeared to be missing. Thanks to google I knew where to look: /etc/network/interfaces. That contained
Code:
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
allow-hotplug eth0
#NetworkManager#iface eth0 inet dhcp
Some advice said to change 'allow-hotplug' to 'auto'. After doing
Code:
$ sudo /etc/init.d/networking restart
Running /etc/init.d/networking restart is deprecated because it may not enable again some interfaces ... (warning).
Reconfiguring network interfaces...Ignoring unknown interface eth0=eth0.
done.
I decided this was a bad idea. Out of google advices I decided to experiment and to uncomment the iface eth0 line. Now it reads
Code:
# The loopback network interface
auto lo
iface lo inet loopback
# The primary network interface
allow-hotplug eth0
#NetworkManager#iface eth0 inet dhcp
iface eth0 inet dhcp
This didn't gave me result after the init.d/networking restart, but after a reboot, I had network again:
Code:
$ sudo ifconfig
eth0 Link encap:Ethernet HWaddr 00:23:54:19:af:13
inet addr:192.168.1.6 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::223:54ff:fe19:af13/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:53797 errors:0 dropped:0 overruns:0 frame:0
TX packets:33218 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:69976450 (66.7 MiB) TX bytes:3530064 (3.3 MiB)
Interrupt:27
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:167 errors:0 dropped:0 overruns:0 frame:0
TX packets:167 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:18032 (17.6 KiB) TX bytes:18032 (17.6 KiB)
A long introduction to my question: was uncommenting this line an acceptable solution, or should I have done something else? Can anyone explain what happens?
thanks in advance! Ruud |
