Re: [gentoo-user] Re: Ethernet Machination

[Mark Knecht <markknecht@gmail.com>]

On Wed, Jan 2, 2013 at 12:57 PM, james <wireless@tampabay.rr.com> wrote:
> Mark Knecht <markknecht <at> gmail.com> writes:
>
>
>> > So now that only one ethernet shows up, how do I prevent
>> > udev from renaming eth0 to eth3?
>
>> Probably remove any net-persistent rules that are hanging around. That
>> should free up udev to do more of what you suspect.
>
<SNIP>
>
> After deleting the 70-persistent-net.rule file
>
> udev does not re-create it. All is now fine with rc-status
> only showing net.eth0 which is set up how I like it
> per /etc/conf.d/net. All services are fine
>
>
> Move on, or hand edit the '70-persistent-net.rules' file?
>
> TIA,
> James
>
>
>

Well, I think I'd hand edit myself. That's what I've done in the past.
As Bruce say, dispatch-conf (or etc-update is what I use) might pick
something up if it's waiting, but looking at the comments in my file I
don't think so:

mark@c2stable ~ $ cat /etc/udev/rules.d/70-persistent-net.rules
# This file was automatically generated by the /lib64/udev/write_net_rules
# program, run by the persistent-net-generator.rules rules file.
#
# You can modify it, as long as you keep each rule on a single
# line, and change only the value of the NAME= key.

# PCI device 0x11ab:0x4364 (sky2)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
ATTR{address}=="e0:cb:4e:97:80:fd", ATTR{dev_id}=="0x0",
ATTR{type}=="1", KERNEL=="eth*", NAME="eth1"

# PCI device 0x11ab:0x4364 (sky2)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
ATTR{address}=="e0:cb:4e:97:7a:09", ATTR{dev_id}=="0x0",
ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
mark@c2stable ~ $

Really, as long as you don't mess up the format it's really just a
matter of matching the macID. Save your old file in a copy somewhere
and then edit and make it work. ifconfig will show you the macID.

I, like so many others I think, really don't understand how udev
manages all this stuff. I'm really not sure udev knows how udev
works...

HTH,
Mark