How can I prevent udevd from renaming eth0 to em1

[Bill Davidsen]

Digimer wrote:
> On 10/17/2012 09:18 PM, Digimer wrote:
>> On 10/17/2012 06:24 PM, JD wrote:
>>> Briefly....
>>> $ ifconfig -a
>>> em1       Link encap:Ethernet  HWaddr xx:xx:...etc
>>>
>>> lo        Link encap:Local Loopback
>>>
>>> virbr0    Link encap:Ethernet  HWaddr xx:xx:...etc
>>>
>>> virbr0-nic Link encap:Ethernet  HWaddr xx:xx:...etc
>>>
>>> wlan0     Link encap:Ethernet  HWaddr xx:xx:...etc
>>
>> Ah, I see. On my systems, I get:
>>
>> ===
>> em1: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
>>          ether f0:de:f1:fc:65:b3  txqueuelen 1000  (Ethernet)
>> ===
>>
>> So the script says "grab any non-space character up to the colon (foo:).
>> Your now showing a colon, so it fails to match.
>>
>> Try replacing:
>>
>> ===
>> 	if ($line =~ /^(\S+):/)
>> ===
>>
>> With:
>>
>>
>> ===
>> 	if ($line =~ /^(\S+)/)
>> ===
>
> Strike that, I see that you are also showing the HWADDR on the same
> line, so the whole regex this is going to miss your output.
>
> Skip the script; The main thing is to take the 'em1 ... HWadd:
> aa:bb:cc:dd:ee:ff' and put it in 70-persistent-net.rules as (one line);
>
> SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
> ATTR{address}=="aa:bb:cc:dd:ee:ff", NAME="eth0"
>
> Then in you 'ifcfg-eth0' file, set 'DEVICE="eth0"' and make sure there
> is no HWADDR="..." line. Reboot and you should be golden.
>
He's going to have to create an ifcfg file for this device, right? Will the ifup 
do the right thing for an em hardware interface renamed to eth (don't have em so 
can't compare)

-- 
Bill Davidsen <davidsen at tmr.com>
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot