interface renaming (was: Re: Moving towards NetworkManager)

Paul Smith paul at
Fri Jul 29 22:44:22 UTC 2016

On Fri, 2016-07-29 at 22:00 +0100, Colin Law wrote:
> Are you certain about that.  I thought, for example, that if you added
> another interface then the original one might change from eth0 to
> eth1.  Maybe I am mis-remembering what I read.

No, that's not how it works in my experience.  When you first install
the system it will choose which interface is eth0 (for example).  Once
that is done, the system remembers the MAC address of that interface
card and from then on it will always associate the card with that MAC
with eth0, even if new interfaces appear.

However, it's true that when you first install the system it may not be
determinable which interface becomes eth0 but once one is chosen it
stays, from what I can tell.

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