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udev-197-r3, kernel-3.7.4: persistent network names change
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wynn
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PostPosted: Tue Jan 29, 2013 4:16 pm    Post subject: udev-197-r3, kernel-3.7.4: persistent network names change Reply with quote

Hello

I have sys-fs/udev-197-r3 and linux-3.7.4 installed, I have removed 70-persistent-net.rules from /etc/udev/rules.d/ which is empty.

The names in /sys/class/net when I looked at them were enp4s2 and wlp3s0. About every other boot these change to enp5s2 and wlp4s0 and I get a message saying the kernel module hasn't been loaded...

As a temporary solution I have duplicated the lines in net to cover the alternative names ... but these are supposed not to change from boot to boot...

The kernel is compiled with both CONFIG_DEVTMPFS=y and CONFIG_DEVTMPFS_MOUNT=y.

I don't know if emerge --info or /proc/config.gz is going to be a help but I will provide them (or other stuff) on request.

Thanks for any help, pointers,

Chris
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zyqhi
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PostPosted: Mon Apr 15, 2013 8:37 am    Post subject: Reply with quote

http://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames
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wynn
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PostPosted: Mon Apr 15, 2013 11:09 am    Post subject: Reply with quote

Thank you for your reply.

The link you have given me says
Quote:
Come again, what good does this do?

With this new scheme you now get:

Stable interface names across reboots


and that is not what I am getting.

On a boot from cold I get
Code:
 ls -alFs /sys/class/net
total 0
0 drwxr-xr-x  2 root root 0 Apr 15 10:33 ./
0 drwxr-xr-x 32 root root 0 Apr 15 10:33 ../
0 lrwxrwxrwx  1 root root 0 Apr 15 10:33 enp5s2 -> ../../devices/pci0000:00/0000:00:14.4/0000:05:02.0/net/enp5s2/
0 lrwxrwxrwx  1 root root 0 Apr 15 10:33 lo -> ../../devices/virtual/net/lo/
0 lrwxrwxrwx  1 root root 0 Apr 15 10:33 sit0 -> ../../devices/virtual/net/sit0/
0 lrwxrwxrwx  1 root root 0 Apr 15 10:34 wlp4s0 -> ../../devices/pci0000:00/0000:00:0b.0/0000:04:00.0/net/wlp4s0/

on rebooting (a warm reboot) I get
Code:
total 0
0 drwxr-xr-x  2 root root 0 Feb  3 18:27 ./
0 drwxr-xr-x 32 root root 0 Feb  3 18:27 ../
0 lrwxrwxrwx  1 root root 0 Feb  3 18:27 enp4s2 -> ../../devices/pci0000:00/0000:00:14.4/0000:04:02.0/net/enp4s2/
0 lrwxrwxrwx  1 root root 0 Feb  3 18:27 lo -> ../../devices/virtual/net/lo/
0 lrwxrwxrwx  1 root root 0 Feb  3 18:27 sit0 -> ../../devices/virtual/net/sit0/
0 lrwxrwxrwx  1 root root 0 Feb  3 18:28 wlp3s0 -> ../../devices/pci0000:00/0000:00:0b.0/0000:03:00.0/net/wlp3s0/


Chris
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John R. Graham
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PostPosted: Mon Apr 15, 2013 8:04 pm    Post subject: Reply with quote

Moved from Kernel & Hardware to Duplicate Threads in favor of predictable network interface names.

- John
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