[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

the Peripheral Device Identity Problem; was Re(2): Copied ... assigns eth2 to only Ethernet adapter



Roy, Clifford & others, 

This is not meant to offend anyone.  Certainly 
not to offend any system architect, software 
author, package maintainer or other contributor.  
Just for sake of discussion, interest and 
understanding.

At Mon, 25 Aug 2008 16:19:00 +0100 Roy wrote,
"The only oddity is that it assigns the name "eth2" to the only Ethernet adapter, ..."

At Mon, 25 Aug 2008 18:24:52 +0200 Clifford wrote,
"... network card has a different mac address to the previous 
machine (albeit virtual) ...
% cat /etc/udev/rules.d/z25_persistent-net.rules
   ... delete all ethx lines ..."
   
In "http://alsa.opensrc.org/MultipleCards#Multiple_devices"; we find,
"... stop naming Alsa devices using numbers, and use the real name of devices."

These are instances of the Peripheral 
Device Identity Problem.  With 
contemporary busses, the real identity 
of a device is available to software.  
Ambiguity can be avoided by using real 
identity rather than a traditional name 
such as card0 or eth2.  An Ethernet device 
has an Ethernet address which is available 
to udev. 
 
So Roy, you can take consolation in the 
likelihood that the problem will be solved 
in the not-too-distant future.

Regards,           ... Peter E.



-- 
http://members.shaw.ca/peasthope/
http://carnot.yi.org/  = http://carnot.pathology.ubc.ca/


Reply to: