Kashyap Chamarthy | 26 Apr 13:05 2011

question on ifcfg-em1 (consitent network device naming related)

Hi,

So it's been a few days now with F15 beta, with the sleek Gnome3 installed.(Machine - DELL 
Precision T5400). Apart from a few glitches, this looks good.

Now, I'm aware of the 'Consistent-Network-Device-Naming' feature.

Question:
	- In the stock F15 install, I don't see an 'ifcfg-em1' file in network-scripts directory. 
Is that intentional?
		+ I use plenty of Virtualization with bridging. So do I have to manually create 
ifcfg-em1 (without HWADDR entry -- I read this in the release-note that all HWADDR entries 
shall be removed from ifcfg-*) ?

Here is some info which confirms that my DELL machine is impacted.
--------------------------------------------------------------------
[root <at> sunrise export]# ./Biosdevname-support-check.sh
Checking hardware requirements                             [  OK  ]
Checking for SMBIOS type 41 support                        [FAILED]
Checking for SMBIOS type 9 support                         [  OK  ]
Checking for PCI Interrupt Routing support                 [  OK  ]
[root <at> sunrise export]#
--------------------------------------------------------------------
[root <at> sunrise ~]# ls /sys/class/net
em1  lo  virbr0
[root <at> sunrise ~]#
--------------------------------------------------------------------

Note: I manually created an ifcfg-em1 andifcfg-br0(for bridging) with usual parameters 
(*except* HWADDR) ; stopped NM ; start good old 'network' and things work just fine with 
(Continue reading)

James Laska | 26 Apr 16:05 2011
Picon

Re: question on ifcfg-em1 (consitent network device naming related)

On Tue, 2011-04-26 at 16:35 +0530, Kashyap Chamarthy wrote:
> Hi,
> 
> So it's been a few days now with F15 beta, with the sleek Gnome3 installed.(Machine - DELL 
> Precision T5400). Apart from a few glitches, this looks good.
> 
> Now, I'm aware of the 'Consistent-Network-Device-Naming' feature.
> 
> Question:
> 	- In the stock F15 install, I don't see an 'ifcfg-em1' file in network-scripts directory. 
> Is that intentional?

What do you see there?  Using NetworkManager (nm-connection-editor), did
you configure networking to start/connect automatically?

> 		+ I use plenty of Virtualization with bridging. So do I have to manually create 
> ifcfg-em1 (without HWADDR entry -- I read this in the release-note that all HWADDR entries 
> shall be removed from ifcfg-*) ?

To make use of bridged networking for virtualization, it is still
expected that you create the ifcfg-* files by hand.  I believe HWADDR
only comes into play for upgraded systems, or if you want to use an
unusual device name.  If an upgraded system already has HWADDR present
(and possible also matching udev rules), the old device name will be
used.  Otherwise, you get the new naming scheme.

> Here is some info which confirms that my DELL machine is impacted.
> --------------------------------------------------------------------
> [root <at> sunrise export]# ./Biosdevname-support-check.sh
> Checking hardware requirements                             [  OK  ]
(Continue reading)

Kashyap Chamarthy | 26 Apr 19:53 2011

Re: question on ifcfg-em1 (consitent network device naming related)

On 04/26/2011 07:35 PM, James Laska wrote:
> On Tue, 2011-04-26 at 16:35 +0530, Kashyap Chamarthy wrote:
>> Hi,
>>
>> So it's been a few days now with F15 beta, with the sleek Gnome3 installed.(Machine - DELL
>> Precision T5400). Apart from a few glitches, this looks good.
>>
>> Now, I'm aware of the 'Consistent-Network-Device-Naming' feature.
>>
>> Question:
>> 	- In the stock F15 install, I don't see an 'ifcfg-em1' file in network-scripts directory.
>> Is that intentional?
>
> What do you see there?

I just see the loopback stuff - 'ifcfg-lo' . No other ifcfg-*

  Using NetworkManager (nm-connection-editor), did
> you configure networking to start/connect automatically?

I didn't configure anything explicitly. I just used the stock F15 beta. So that means, yes 
NM was in play.
>
>> 		+ I use plenty of Virtualization with bridging. So do I have to manually create
>> ifcfg-em1 (without HWADDR entry -- I read this in the release-note that all HWADDR entries
>> shall be removed from ifcfg-*) ?
>
> To make use of bridged networking for virtualization, it is still
> expected that you create the ifcfg-* files by hand.

(Continue reading)

Radek Vykydal | 29 Apr 17:18 2011
Picon

Re: question on ifcfg-em1 (consitent network device naming related)

On 04/26/2011 07:53 PM, Kashyap Chamarthy wrote:
> On 04/26/2011 07:35 PM, James Laska wrote:
>> On Tue, 2011-04-26 at 16:35 +0530, Kashyap Chamarthy wrote:
>>> Hi,
>>>
>>> So it's been a few days now with F15 beta, with the sleek Gnome3 installed.(Machine - DELL
>>> Precision T5400). Apart from a few glitches, this looks good.
>>>
>>> Now, I'm aware of the 'Consistent-Network-Device-Naming' feature.
>>>
>>> Question:
>>> 	- In the stock F15 install, I don't see an 'ifcfg-em1' file in network-scripts directory.
>>> Is that intentional?
>> What do you see there?
> I just see the loopback stuff - 'ifcfg-lo' . No other ifcfg-*

Was it Live CD install? Please see 
http://bugzilla.redhat.com/show_bug.cgi?id=698414

Radek
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