Unscheduled unattended boot
glgxg at sbcglobal.net
Sat Nov 24 20:43:22 UTC 2012
On 11/24/2012 04:28 AM, Phil Dobbin wrote:
> Hi, all.
> I upgraded my youngest son's HP desktop machine to Quantal & now, for
> some unknown reason, it boots up at 06:30 every morning (I found out the
> time of the boot after hearing its start-up password prompt when walking
> past his bedroom door).
> It happens every morning & I had been blaming him for it (I've got the
> whole home LAN monitored by Nagios & all machines except mine are
> powered off by via cron at 22:00 each night so I see its upstate from
> Nagios every morning) but one this particular morning when I heard it
> boot, he was fast asleep.
> There's nothing installed like gwakeonlan or similar & I'm at a loss to
> explain it. Both my wife & other two children are using Precise & they
> do not have this particular problem.
You don't need gwakeonlan for the port to be triggered, or system power
$ sudo apt-get intall ethtool
(if you don't already have it installed)
$ sudo ethtoool ethx (x = 0,1,2 etc)
Sets Wake-on-LAN options. Not all devices support this.
The argument to this option is a string of characters specifying
which options to enable.
p Wake on PHY activity
u Wake on unicast messages
m Wake on multicast messages
b Wake on broadcast messages
a Wake on ARP
g Wake on MagicPacket™
s Enable SecureOn™ password for MagicPacket™
d Disable (wake on nothing). This option
clears all previous options.
If 'Wake-on' is set to anything other than 'd':
$ sudo ethtool -s eth(x) d
will turn it off.
If 'Supports Wake-on' shows anything in addition to 'g' and 's' (i.e.,
pumba), then WOL can be triggered without a "MagicPacket™".
You might also want to check acpi wakeup:
Anything in the logs?
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