On 08/26/2014 09:02 AM, 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.
I had to carefully scan down the db and found:
P: /devices/platform/sunxi_emac.0/net/eth0 E: DEVPATH=/devices/platform/sunxi_emac.0/net/eth0 E: ID_MM_CANDIDATE=1 E: ID_NET_NAME_MAC=enx02560201f3b9 E: IFINDEX=2 E: INTERFACE=eth0 E: SUBSYSTEM=net E: SYSTEMD_ALIAS=/sys/subsystem/net/devices/eth0 E: TAGS=:systemd: E: USEC_INITIALIZED=104918
So the macaddr was being registered to udev. So I started playing with the ifcfg0-eth0 file until I found the culprit. The line:
NM_CONTROLLED="no"
Was really meaning no NetworkManager control of the interface, and since network is inactive by default, no eth0! Dah. So I just deleted that line and let NetworkManager control the interface, as I DO want RA to provide the IPv6 info. This is way I am changing the MAC address, so I get an IPv6 address I can work with to put in DNS and can more easily change IPv6 prefixes as needed. Can even change which system I use as long as the rules are right, as I set the macaddr. Local Scope mac addresses can be your friend...
thanks for putting up with me as I dug into this one.
What I get from copying ifcfg-eth0 from a Centos6 system to F20... :)
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#...
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