On 05/13/2013 02:50 AM, Bill Bogstad wrote:
On Sun, May 12, 2013 at 3:15 PM, <[email protected]> wrote:
Upon upgrading Debian Linux (64-bit) Squeeze (6) to Wheezy (7), the on-board
NIC (Realtek) will not shut down when the system is brought down. I
discovered this when the port light on the router remained on. However, in
Windows 7, the NIC shuts down properly.
In Squeeze, for the NIC to shut down properly, I added 'post-up ethtool -s
eth0 wol d' to /etc/network/interfaces under the primary network interface
information:
#The primary network interface
auto eth 0
iface lo inet loopback
post-up ethtool -s eth0 wol d
This information was retained after the upgrade, however Wheezy seems to be
ignoring this now. The only way at present to get the NIC to shut down
after a Linux session, is to open a terminal window and manually entering
the ethtool command above. Then it sticks. Upon a reboot, ethtool eth0
shows Wake on Lan back to the 'g' setting.
I have also added post-down with the same ethtool command as above in
/etc/network/interfaces and also added the ethtool command to /etc/rc.local
before the 'exit 0' line. Neither of these two worked.
Are there any other things worth trying?
Are you 100% certain that those commands are actually getting
executed? Without error?
I would probably try replacing the command(s) with a shell script that
logged any errors while running
the same command. Think of this as the moral equivalent of
"printf() debugging" for system configuration
files. It's not elegant, but it can be useful.
I would suggest trying this from the command line:
sudo ethtool -s eth0 wol -d
Another thing is:
sudo ethtool eth0
This will dump all the capabilities of eth:
Supports Wake-on: g
Wake-on: d
Also check status of /sys/class/net/eth0/device/power/wakeup
The values will be enabled or disabled
To disable:
sudo echo disabled > /sys/class/net/eth0/device/power/wakeup
In any case, by running it from the command line you can determine if
ethtool is working. You do not have to reboot since this sends commands
directly to the NIC (through the driver).
--
Jerry Feldman <[email protected]>
Boston Linux and Unix
PGP key id:3BC1EB90
PGP Key fingerprint: 49E2 C52A FC5A A31F 8D66 C0AF 7CEA 30FC 3BC1 EB90
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