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#1 2010-03-31 06:02:37

xCrucialDudex
Member
Registered: 2007-08-19
Posts: 144

udev and varying naming of devices - is this still relevant?

hey guys I've stumbled upon this statement in Wiki:

Since udev cannot ensure that one ethernet cards module will be loaded before the next, you will run into the case where your ethernet devices may switch names (i.e. eth0 may become eth1 and vise versa).

I wonder if this is still relevant. I have a router with three ethernet cards in it and so far I've not run into the problem mentioned. This is kind of crucial since I'm about to give the router out to people to set it up in production environment and if this issue is real it might turn out ugly one day smile

Last edited by xCrucialDudex (2010-03-31 07:04:55)

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#2 2010-03-31 06:06:16

tavianator
Member
From: Waterloo, ON, Canada
Registered: 2007-08-21
Posts: 859
Website

Re: udev and varying naming of devices - is this still relevant?

Yes, although it hasn't affected me on any box I own.  If it's consistent so far, then you should be fine, but a future update could easily change this.  If writing a udev rule is easy compared to the potential pain of not doing it, then why not?

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#3 2010-03-31 06:11:38

xCrucialDudex
Member
Registered: 2007-08-19
Posts: 144

Re: udev and varying naming of devices - is this still relevant?

tavianator wrote:

Yes, although it hasn't affected me on any box I own.  If it's consistent so far, then you should be fine, but a future update could easily change this.  If writing a udev rule is easy compared to the potential pain of not doing it, then why not?

Yeah, right.

Here's one more bit of information on this issue and recommendations on how to fix it.

Last edited by xCrucialDudex (2010-03-31 06:12:08)

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#4 2010-03-31 06:42:27

tomk
Forum Fellow
From: Ireland
Registered: 2004-07-21
Posts: 9,839

Re: udev and varying naming of devices - is this still relevant?

Minor correction regarding your thread title - network cards are not block devices.

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#5 2010-03-31 07:04:23

xCrucialDudex
Member
Registered: 2007-08-19
Posts: 144

Re: udev and varying naming of devices - is this still relevant?

tomk wrote:

Minor correction regarding your thread title - network cards are not block devices.

haha, yes, you're right.

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#6 2010-03-31 15:54:49

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 20,677

Re: udev and varying naming of devices - is this still relevant?

xCrucialDudex wrote:

Yeah, right.

I believe English is the only language (natural or programming) where two positives can make a negative.


Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
The shortest way to ruin a country is to give power to demagogues.— Dionysius of Halicarnassus
---
How to Ask Questions the Smart Way

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#7 2010-03-31 16:13:41

xCrucialDudex
Member
Registered: 2007-08-19
Posts: 144

Re: udev and varying naming of devices - is this still relevant?

ewaller wrote:
xCrucialDudex wrote:

Yeah, right.

I believe English is the only language (natural or programming) where two positives can make a negative.

Erm.. okay, I don't really see how I made a negation there? Would you care to elaborate? I'm really curious now.

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#8 2010-03-31 17:58:43

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 20,677

Re: udev and varying naming of devices - is this still relevant?

xCrucialDudex wrote:

Erm.. okay, I don't really see how I made a negation there? Would you care to elaborate?

Sorry, it has to do with American English slang.  "Yeah right" sort of means the same thing as "Good luck with that".  It can be interpreted as a sarcastic response to something which one disagrees.  I really could not tell if you were in agreement or disagreement.

The thing I find funny is that in some languages a double negative is a positive, while in other languages it is a negative.  I find it ironic that, because of the silly slang, a double positive can be a negative in American English


Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
The shortest way to ruin a country is to give power to demagogues.— Dionysius of Halicarnassus
---
How to Ask Questions the Smart Way

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#9 2010-03-31 19:05:18

xCrucialDudex
Member
Registered: 2007-08-19
Posts: 144

Re: udev and varying naming of devices - is this still relevant?

ewaller wrote:
xCrucialDudex wrote:

Erm.. okay, I don't really see how I made a negation there? Would you care to elaborate?

Sorry, it has to do with American English slang.  "Yeah right" sort of means the same thing as "Good luck with that".  It can be interpreted as a sarcastic response to something which one disagrees.  I really could not tell if you were in agreement or disagreement.

The thing I find funny is that in some languages a double negative is a positive, while in other languages it is a negative.  I find it ironic that, because of the silly slang, a double positive can be a negative in American English

Yeah, right wink

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