Re: [gentoo-user] Eth0 interface not found - udev that little slut!!!!!

[Volker Armin Hemmann <volkerarmin@googlemail.com>]

Am 06.04.2013 21:33, schrieb Mick:
> On Saturday 06 Apr 2013 20:03:15 Volker Armin Hemmann wrote:
>> Am 06.04.2013 17:57, schrieb Alan Mackenzie:
>>> Hi, Nick.
>>>
>>> On Sat, Apr 06, 2013 at 10:51:42AM -0400, Nick Khamis wrote:
>>>> After updating our systems we lost network connectivity to the
>>>> servers. When trying to start net.eth0 we got the following message:
>>>> /ib64/rc/net/wpa_supplicant.sh: line 68: _is wireless command not found
>>>> /etc/init.d/net.eth0: line 548: _exists command not found
>>>> Errror: Interface eth0 does not exist
>>>> Ensure that you have loaded the correct kernel modules for your hardware
>>>> # lsmod
>>>> module used by
>>>> tg3       0
>>>> lbphy    tg3
>>>> eth0
>>>> flags=4098<broadcast,multicast> mtu 1500
>>>> ....
>>>> interrupt=16
>>>>
>>>> lo
>>>> flags=73<UP,LOOPBACK,RUNNING> mtu 16436
>>>> inet 127.0.0.1 BROADCAST 255.255.255.0
>>>> inet6 ::1 prefixlen 128 scopeid 0x10 <host>
>>>>
>>>> Please excuse me, I am running back and forth from the servers and
>>>> typing the error message here. Did our configuration get switched to
>>>> IP6? These are our DB servers and why me!!! Why ME!!!!!
>>> No, it's not just you, it's happened to pretty much everybody.  udev-200
>>> now renames eth0, eth1, .... to something else, dependent upon
>>> complicated rules.  In my case eth0 has become p6p1, though many people
>>> seem to have got longer names.
>>>
>>> Have a look in /sys/class/net and see if your new name is there.  If so,
>>> edit all your config files containing eth0, switching to the new name.
>>>
>>> Once you got that done and things work again, take a deep breath and have
>>> a look at the most recent Gentoo news item ($ eselect news read) which
>>> explains it all, more or less.  Then decide whether the above is a long
>>> term solution, and if not start reading docs about writing udev rules.
>>>
>>> Yes, it's a pain in the backside.  But at least with Gentoo, you've a
>>> good chance of fixing things like this quickly.
>>>
>>>> Your help is greatly appreciated,
>>>> Nick
>> in my case it is still eth0:
>> ifconfig
>> eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
>>         inet 192.168.178.21  netmask 255.255.255.0  broadcast
>> 192.168.178.255
>>         inet6 fe80::1e6f:65ff:fe87:6f6a  prefixlen 64  scopeid 0x20<link>
>>         ether 1c:6f:65:87:6f:6a  txqueuelen 1000  (Ethernet)
>>         RX packets 4647305  bytes 6693078055 (6.2 GiB)
>>         RX errors 0  dropped 0  overruns 0  frame 0
>>         TX packets 2943816  bytes 226871998 (216.3 MiB)
>>         TX errors 0  dropped 1 overruns 0  carrier 0  collisions 0
>>
>> sys-fs/udev
>>      Available versions:  (~)168-r2[1] [M]171-r10 197-r8^t{tbz2}
>> (~)198-r6^t{tbz2} (~)199-r1^t{tbz2} 200^t{tbz2} **9999^t {acl
>> action_modeswitch build debug doc edd extras +firmware-loader floppy
>> gudev hwdb introspection keymap +kmod +openrc +rule_generator selinux
>> static-libs test}
>>      Installed versions:  200^t{tbz2}(18:30:31
>> 29.03.2013)(firmware-loader gudev hwdb keymap kmod openrc -acl -doc
>> -introspection -selinux -static-libs)
>>
>> I did keep net.eth0....
> Is your eth0 NIC a module (modprobed), or built in the kernel?
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