I'm trying to put my old laptop into suspend mode through the terminal.
rtcwake -m disk -s 10 works in newer versions but in 8.04 I get:
error /sys/class/rtc/rtc0/device/power/wakeup: No such file or directory" rtcwake: /dev/rtc0 not enabled for wakeup events.
I have tried googling this but all I get is people asking this very question with no answers.
How can I suspend the computer for a pre-determined amount of time from the terminal, in older Ubuntu versions?