Re: swapping interface names (again)

[juuso.alasuutari@tamperelainen.org]

I accidentally only sent my message to Marco. Here it is for the list also:

Quoting Marco d'Itri <md@Linux.IT>:

> On Jun 24, MS Colclough <m.s.colclough@bham.ac.uk> wrote:
>
> > imply that the whole process can be done by some udev rules that run
> > at boot time?  If so, how please?
> Look at the Debian package for a simple script which generates rules on
> demand.

It's of course easy to write a script that creates something like
z99-network.rules. But what should it contain?

If I have eth0 and eth1, and want to swap their names, I first need to rename
them to e.g. tempeth0 and tempeth1, and then to eth1 and eth0. But what kind of
rule would recognise when all temporary names are created and apply the final
ones?

udevmonitor doesn't show any event where the interface is renamed. The last line
is "add@/class/net/eth0", even though that interface was renamed tempeth0 by a
rule.

I tried to catch the renaming event with 'KERNEL="tempeth0", NAME="eth1"' and
'NAME="tempeth0", NAME="eth1"', but they didn't work. And even if they did,
how could I be sure that the original eth1 wasn't still around messing things
up? Both temp interface names would need to be set.

Any ideas?

Thanks,
Juuso

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