Consistent names changed yet again?
Michael Hennebry
hennebry at web.cs.ndsu.nodak.edu
Wed Aug 6 19:25:46 UTC 2014
On Wed, 6 Aug 2014, Samuel Sieb wrote:
> On 08/06/2014 10:48 AM, Michael Hennebry wrote:
>> wrote:
>>> For a longer time udev shipped support for assigning permanent "ethX"
>>> names to certain interfaces based on their MAC addresses.
>>> This turned out to have a multitude of problems, among them:
>>> this required a writable root directory which is generally not available;
>>
>> Huh? Why would that require a writeable root directory?
>>
> There was a file in /etc/udev/rules.d/ that kept track of the mapping
> from devices to the ethX names.
Soft link it to something under /var .
>>> the statelessness of the system is lost as booting an OS image on a
>>> system will result in changed configuration of the image;
>>> on many systems MAC addresses are not actually fixed,
>>> such as on a lot of embedded hardware and particularly
>>
>> How do MAC addresses get changed on embedded systems?
>>
> Some ethernet hardware on embedded systems doesn't have built-in MAC
> addresses.
Not having any is not the same as changed.
--
Michael hennebry at web.cs.ndsu.NoDak.edu
"SCSI is NOT magic. There are *fundamental technical
reasons* why it is necessary to sacrifice a young
goat to your SCSI chain now and then." -- John Woods
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