Hardware: Soekris net5501 hardware
Astlinux: 1.1.4-Asterisk-11.7.0
I have had an issue that I have experienced twice in the last couple of
weeks.
I believe the issue I have experienced may have some relation to what was
observed in http://sourceforge.net/p/astlinux/mailman/message/30421685/
Astlinux is not operable because eth0 is not found (assigned) in my net5501
hardware.
I captured partial console logs, but here is what I think is happening:
- I took an existing Compact Flash device from another one of my
net5501 devices, and plugged it into a new net5501
- Astlinux had been configured with a static IP address. (I don't
know if this is related to the issue or not)
- I had the serial port hooked up to my PC, but no Ethernet cable
plugged into the new net5501
- I powered up the new net5501
- I saw flash by on the console that eth0 was renamed to eth4
<30>udevd[165]: renamed network interface eth0 to eth4
<30>udevd[166]: renamed network interface eth1 to eth5
<30>udevd[168]: renamed network interface eth2 to eth6
- Astlinux starts, and I plug in my Ethernet cable
- But Astlinux is not reachable, since there is no eth0 port.
- Following some leads from Dr. Google, I inspected on this new
net5501 device the existence of the following file:
/etc/udev/rules.d/70-persistent-net.rules
It did exist, and the contents show the cause of the problem.
===========================================================================
=
# 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 0x1106:0x3053 (via-rhine)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
ATTR{address}=="00:00:24:d0:70:dc", ATTR{dev_id}=="0x0", ATTR{type}=="1",
KERNEL=="eth*", NAME="eth0"
# PCI device 0x1106:0x3053 (via-rhine)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
ATTR{address}=="00:00:24:d0:70:dd", ATTR{dev_id}=="0x0", ATTR{type}=="1",
KERNEL=="eth*", NAME="eth1"
# PCI device 0x1106:0x3053 (via-rhine)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
ATTR{address}=="00:00:24:d0:70:df", ATTR{dev_id}=="0x0", ATTR{type}=="1",
KERNEL=="eth*", NAME="eth3"
# PCI device 0x1106:0x3053 (via-rhine)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
ATTR{address}=="00:00:24:d0:70:de", ATTR{dev_id}=="0x0", ATTR{type}=="1",
KERNEL=="eth*", NAME="eth2"
# PCI device 0x1106:0x3053 (via-rhine)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
ATTR{address}=="00:00:24:d0:cf:84", ATTR{dev_id}=="0x0", ATTR{type}=="1",
KERNEL=="eth*", NAME="eth4"
# PCI device 0x1106:0x3053 (via-rhine)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
ATTR{address}=="00:00:24:d0:cf:85", ATTR{dev_id}=="0x0", ATTR{type}=="1",
KERNEL=="eth*", NAME="eth5"
# PCI device 0x1106:0x3053 (via-rhine)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
ATTR{address}=="00:00:24:d0:cf:86", ATTR{dev_id}=="0x0", ATTR{type}=="1",
KERNEL=="eth*", NAME="eth6"
# PCI device 0x1106:0x3053 (via-rhine)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*",
ATTR{address}=="00:00:24:d0:cf:87", ATTR{dev_id}=="0x0", ATTR{type}=="1",
KERNEL=="eth*", NAME="eth7"
===========================================================================
=
eth0 is mapped to the Ethernet MAC address of my original hardware, not my
new hardware.
To get over this issue, I need to just simply delete this file
70-persistent-net.rules in its entirety, and reboot the hardware.
The other time that this occurred earlier, I did NOT do the same steps as
above (ie. Use an existing compact flash). Rather, I was setting up a
net5501 completely from scratch. In that instance, it seemed like via-rhine,
or the Astlinux image, Linux had history on a MAC address that I did not
recognize.
In that situation, eth0 was remaned to eth1, eth1 to eth2 , ... and eth0 was
assigned the unrecognized MAC address.
Again, in that situation I deleted 70-persistent-net.rules to rectify the
problem.
>From a setup / reliability concern, can we give some consideration to
purging this file automatically in Astlinux ?
Or any other suggestions on how to auto-purge it ?
Thx, Martin
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