Re: [coLinux-devel] No network anmore?

[<Use...@zo...>]

colinux:~# uname -a
Linux colinux 2.6.22-co-0.8.0 #1 PREEMPT Mon Dec 3 23:34:07 CET 2007 i686 GNU/Linux

shows an, em, effect on debian 4.0:


Effect:
After the second start of colinux the network is not working anymore.

An attempt to start the network from console manually
complaints like this:

colinux:~# /etc/init.d/networking restart
Reconfiguring network interfaces...SIOCSIFADDR: No such device
eth0: ERROR while getting interface flags: No such device
SIOCSIFNETMASK: No such device
eth0: ERROR while getting interface flags: No such device
Failed to bring up eth0.
SIOCSIFADDR: No such device
...


#cat /proc/net/dev
shows an eth device number greater eth0, incremented with each boot. 

The effect is (currently) only seen on debian 4.0 (etch).


Workarround:

1st step:
Assign a fixed MAC address in the colinux config:


For example:
eth0=pcap-bridge,,0A:C0:71:65:08:00,  (implicit ethernet device is not recommanded)
eth0=pcap-bridge,"WindowsNameOfYourEthernet",0A:C0:71:65:08:00,
eth0=tuntap,LAN-TAP V8(colinux),0A:C0:71:65:08:00,

Attention:
The "second" nibble (from left) should have only the values 2,6,A or E.
The remainder does not matter as long as it is unique in your LAN.


2nd step: 
remove all entries in 
 
"/etc/udev/rules.d/z25_persistent-net.rules"

like these:
SUBSYSTEM=="net", DRIVERS=="?*", ATTRS{address}=="00:ff:06:be:41:00", NAME="eth0"

# PCI device 0x1a55:0x0005 (conet)
SUBSYSTEM=="net", DRIVERS=="?*", ATTRS{address}=="00:ff:25:e6:00:00",NAME="eth1"

(Typically the file is empty except the comment header)


Rainer