Hi, there - persistent-net.rules is a clever scheme to prevent your computer
from booting after you replace a burned out motherboard. To disable it, run:
touch /etc/udev/rules.d/75-persistent-net-generator.rules
rm /etc/udev/rules.d/70-persistent-net.rules
K.O.
On Mon, Jul 28, 2014 at 09:35:17AM +0000, SCHAER Frederic wrote:
> Hi,
>
> >From time to time, we get reboot issues with some machines, and each time it
> >looks like there are duplicated persistent rules for the Ethernet devices :
>
> > cat /etc/udev/rules.d/70-persistent-net.rules
> # This file was automatically generated by the /lib/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 0x8086:0x1521 (igb) (custom name provided by external tool)
> SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
> ATTR{address}=="84:8f:69:fb:c1:2a", ATTR{type}=="1", KERNEL=="eth*",
> NAME="em1"
>
> # PCI device 0x8086:0x1521 (igb) (custom name provided by external tool)
> SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
> ATTR{address}=="84:8f:69:fb:c1:2b", ATTR{type}=="1", KERNEL=="eth*",
> NAME="em2"
>
>
> # PCI device 0x8086:0x1521 (igb) (custom name provided by external tool)
> SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
> ATTR{address}=="84:8f:69:fb:c1:2a", ATTR{type}=="1", KERNEL=="eth*",
> NAME="eth0"
>
> # PCI device 0x8086:0x1521 (igb) (custom name provided by external tool)
> SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
> ATTR{address}=="84:8f:69:fb:c1:2b", ATTR{type}=="1", KERNEL=="eth*",
> NAME="eth1"
>
> The second set of rules seem to overwrite the first one, and then we get
> issues with our network config.
> This does not happen on all nodes, just apparently to some random ones,
> sometimes.
> I'm wondering if some of you might have faced and solved that erratic thing
> already ?
>
> We want to keep the emX scheme for nodes which support it...
>
> Thanks
--
Konstantin Olchanski
Data Acquisition Systems: The Bytes Must Flow!
Email: olchansk-at-triumf-dot-ca
Snail mail: 4004 Wesbrook Mall, TRIUMF, Vancouver, B.C., V6T 2A3, Canada
