Re: F20 - What replaced start_udev - Re: creating 70-persistent-net.rules

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On 2014-08-26 15:02, Robert Moskowitz wrote:
It appears to be

udevadm

Which is so complex.  According to the man page 'command --reload-rules'
does NOT change any device that has existing rules. So by that, if you
change a rule, tough luck.  It is SUPPOSE to be automatic.

I have tried exporting the dev-db and looking for the mac info.  But
have not succeeded yet.

On 08/26/2014 08:23 AM, Robert Moskowitz wrote:
All the instructions I have found for 70-persistent-net.rules call for
running:

start_udev

But it is not on ANY of my f20 systems, arm or intel.  Something
changed.  Most likely related to systemd stuff.

So any pointers would be appreciated, as I still don't have this working.


On 08/25/2014 06:19 PM, Robert Moskowitz wrote:

On 08/25/2014 05:05 PM, Digimer wrote:
On 25/08/14 04:45 PM, Robert Moskowitz wrote:

On 08/25/2014 03:57 PM, Digimer wrote:
On 25/08/14 03:52 PM, Robert Moskowitz wrote:
This is on a f20 arm system, but it should be like any F20
system. Yeah,
famous last words.

So I want a 70-persistent-net.rules so I can specify the MAC
address to
the device name.  Then in the ifcfg-xxxx I can change the MACADDR to
what I want.

I got this working on my Redsleeve arm system, but now I need it
on my
F20 arm system.

So I have done a little searching on creating
70-persistent-net.rules,
and I come up with two commands:

udevadm trigger
udevadm trigger --action=add

I have run both and no 70-persistent-net.rules

help please...

As before, you need to create it yourself. I wrote a little script
that will do this, which you can see here:

https://alteeve.ca/w/Changing_Ethernet_Device_Names_in_EL7_and_Fedora_15%2B#Writing_The_udev_Rules_File



Thanks.  I used your script to create my rules file:

# cat /etc/udev/rules.d/70-persistent-net.rules

# Added by 'write_udev' for detected device 'eth0'.
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
ATTR{address}=="02:56:02:01:f3:b9", NAME="eth0"

And that looked good (right madaddr and device name).  So built my
ifcfg-eth0:

# cat /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE="eth0"
BOOTPROTO=none
NM_CONTROLLED="no"
ONBOOT="yes"
TYPE="Ethernet"
NAME="System eth0"
MACADDR=02:67:15:00:01:78
MTU=1500
DNS1=208.83.67.188
GATEWAY="208.83.67.177"
IPADDR="208.83.67.178"
NETMASK="255.255.255.240"
HOSTNAME="miredo.htt-consult.com"
IPV6INIT="yes"
DNS2=2607:f4b8:3:3:9254:5400:0:188

Something is missing as after the change I restarted network.services
and got IPv6 RA errors.  So I rebooted and now no eth0 listed with
ifconfig (or ip addr show).  So something is lacking. Almost like udev
is not running at boot?  How do I check this out?

I've not played with IPv6 yet, and on my system it "just worked". So
I'm not sure what to suggest. Is there a systemd udev target?

SOmething like this:

# systemctl list-unit-files --type=service|grep udev
dracut-pre-udev.service                     static
initrd-udevadm-cleanup-db.service           static
systemd-udev-settle.service                 static
systemd-udev-trigger.service                static
systemd-udevd.service                       static





I reported the inability to change network-interface names in 70-persistent-net.rules as a bug on centos 7.
http://bugs.centos.org/login_page.php , report number 0007472

I was told to set the two kernel parameters

net.ifnames=0 biosdevname=0

after that, still in centos 7, the kernel did not change the network-interface names any more, but still I was not able to rename them.

This may help also in fedora 20?

suomi

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