View Full Version : [ubuntu] Wake Up U!

May 28th, 2009, 05:49 PM
how can i wake up my Ubuntu OS for example at 12.40?
is there any function doing this?

i know that to shutdown i need to do: sudo shutdown 12:40 -P

so? ;)

PS: sorry for my bad english)

May 28th, 2009, 05:51 PM
hit the power button? *shrug*

seriously though, are you trying to find if there is a way to have the system turn on at a certain time after being powered down? If so, I don't believe there is as the system isn't running so can't run commands to turn it on.

May 28th, 2009, 05:52 PM
You want cronjob if you want to do anything at any given time. Type "crontab -e" it will show you current cron jobs. Anyway, detailed information is available here: https://help.ubuntu.com/community/CronHowto

May 28th, 2009, 05:55 PM
For that you would probably need to find an option in your BIOS to automatically switch the PC on at a certain time.

May 28th, 2009, 05:57 PM
You will have to update your bios with this information to make this possible, there is no other way than that.

May 28th, 2009, 05:58 PM
You can set it in bios if it isn't going to change.

There is a way to set this in linux, but I have to look it up.

In the meantime, you can also use another computer to wake it up using wakeonlan

May 28th, 2009, 06:25 PM
here is a link that explains how to do it, but I haven't tried it yet.
make sure you follow the Using /sys/class/rtc/rtc0/wakealarm sections and not the /proc/acpi/alarm ones