set_timer - Assuming a fixed wakeup time in the BIOS, it modifies the system time, so that it will wake up after the specified sleep time.

set_timer timer_enabled sleep_time

set_timer is for BIOSes nvram-wakeup can't handle, because there is no way (known to the author) to change the wakeup time in the NVRAM. One of the reasons might be that the settings are stored in the upper nvram and the manufacturer is not cooperative in sharing the information how to access it. One of the reasons is that the checksum is computed in a way we can't see and the manufacturer is not cooperative in sharing the information how the checksum is computed.

For such boards the wake up time must be set to 23:59:59 the day must be set to 31. If your board supports a month setting for the wakeup, set it to July. set_timer will modify the time in the hardware clock in a way that the computer will wake up at the right time. It will also remember, by which amount of time the clock was changed and restore the correct time on boot.

The System should not update the hardware clock in the shutdown process. In Debian Woody set HWCLOCKACCESS=no in /etc/default/rcS

timer_enabled

if 0 disables the wakeup, otherwise enables it.

sleep_time

the number of seconds from now, when the system should wake up

http://sf.net/projects/nvram-wakeup/

Written by Hans-Hermann Redenius <redenius@gmx.de>

Report bugs at the bug tracking system (see HOMEPAGE) or on the mailing list nvram-wakeup-devel@lists.sourceforge.net

Copyright © 2001-2004 Sergei Haller.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA