I don't use rtcwake. Here is method I use. I like the idea of rtcwake but just have not messed with it.
Shutdown
/system/power management then on right the shutdown/reboot schedule TAB
Wake (using WOL)
http://www.dd-wrt.com/phpBB2/viewtopic.php?p=295476#295476
Look at Dickson's post here for how easy it is to schedule cron jobs on a router with dd-wrt
The rtcwake guide is here http://forums.openmediavault.o…8252&hilit=rtcwake#p18252
You don't write much about your setup But i would start by checking this.
Is the different acpi modes enabled in your bios?
Second test the different "sleep" modes to find out which your mobo have implemented.
- off
- suspend
- mem
- standby
like
rtcwake -m [type of slepp mode] -s 300
The mode that makes ytour mobo go off and wake again is the modes that your mobo supports
Are you running OMV default kernel or the Backports kernel (3.2.xx.xx)?
If acpi is enabled this box should support at lest sleep modes "mem" and "standby" on backports.
You are sure have ACPI enabled in bios setup. You could try to reset bios to default - be aware that this will reset other settings you have made.
To see supported acpi sleep mpodes you can as root type:
cat proc/acpi/wakeup
This will show which acpi sleep states are enabled with current bios setup and kernel version.
OMV default kernel.
mem, standby or off not working.
No option in bios for ACPI that I can find.
cat /proc/acpi/wakeup:
Device S-state Status Sysfs node
PCE2 S4 disabled
PCE3 S4 disabled
PCE4 S4 disabled
PCE5 S4 disabled
PCE6 S4 disabled pci:0000:00:06.0
PCE7 S4 disabled
PCE9 S4 disabled
PCEA S4 disabled
PCEB S4 disabled
PCEC S4 disabled
SBAZ S4 disabled
P0PC S4 disabled pci:0000:00:14.4
PE20 S4 disabled
PE21 S4 disabled
PE22 S4 disabled
PE23 S4 disabled
I guess this means there is no support 
I may look to see if there's a modified bios that adds support as I'm currently using the latest official bios.
Thanks again for your help,
Mike.
Every bios after about year 2000 should have some sort of acpi wake support. I think this is a matter of setting the rights bios options.
There is a bios setting that should be named something like "bios wakeup through rtc". The setting should be under the bios Power management menu.
The setting should be something about the bios being able to wake the mobo at a specific time. This setting locks the rtcwake settings to the bios so they are not usable from for the OS. You must set this feature to "off" before you can get rtcwake to work.
In dmesg you can se what the OS detects about acpi sleep modes. Try this before and after changing bios settings to see what happens from the OS perspective:
dmesg | grep rtc
and upgrade your bios to the newest release
Zitat von "jensk"Every bios after about year 2000 should have some sort of acpi wake support.[...]
Good Joke. Even my Asus Striker Extreme from 2007 (my Desktop Computer) doesn't support AHCI.
Greetings
David
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