auto switch-on

urentity · 02-02-2009, 06:08 PM

I've been doing a search on getting my linux computer to boot up automatically at a specified time. Maybe I am not using the right words, but my search results don't seem to give me anything too relevant.

I have also researched the "at" command, but haven't got the detail on how a computer that is switched off, can actually switch itself on. I have successfully managed to get it to switch off at a specified time. But vice-versa looks trickier. At least, I've haven't managed to get anywhere.

Any suggestions? Thanks!

chrism01 · 02-02-2009, 06:49 PM

If its powered off, there's no way, after all, nothing's running on it.
There are a couple of maybes:

1. if its on a lan, there are wake-on-lan NICs that can be used to wake a system up
2. if you had the power switch left on, system down, then use a timer on the power at the wall, that would work.

jkzfixme · 02-02-2009, 07:47 PM

Why not suspend , using power management & wake on RTC? Although not totally off the difference in your bill would probably be dramatic. Or is this just a matter of principalities ?

Regards
JKZfixme

urentity · 02-03-2009, 06:13 AM

thanks chrism01 and jkzfixme,

I appreciate both suggestions.

I was originally wondering about how you're able to set the allarm on a mobile phone, switch it off and then be awoken by the alarm which also give you a switch on option.

I don't know how it does that. With the PC it seems a bit trickier then, but I will look into those sugegstions,

thank you.

r3sistance · 02-03-2009, 06:17 AM

Anything like this is going to be in the Bios and not apart of linux. Whatever options you have in your bios are the options you can use to wake your computer. I believe some bios's can be woken by certain devices too, like keyboard.