Then, you’ll need an Ethernet network adapter that supports wakeonlan wireless adapters won’t work. First, look in your system BIOS to see if wakeonlan is supported - which it should be - and then enable it, as it should be disabled by default. You could use an Arduino or Raspberry Pi to send the wakeup signal, a Linux-based router, or any Linux PC. This requires sending a signal from a second computer to the computer you want to power on. Wakeonlan is the next most reliable method. Easy peasy.įigure 1: My system BIOS has an easy-to-use wakeup scheduler. My system BIOS has an easy-to-use wakeup scheduler (Figure 1). BIOS WakeupĪ BIOS wakeup is the most reliable. You need to use the power supply switch to turn it off completely. These all work because, when you power off your computer, it’s not really all the way off it is in an extremely low-power state and can receive and respond to signals. You can use wakeonlan, RTC wakeups, or your PC’s BIOS to set scheduled wakeups.
SCEDULE WAKE UP TIME COMPUTER PC
Waking up your Linux PC can be less reliable than shutting it down, so you may want to try different methods. It might not seem like pressing a power button is a big deal, but at that time of day every little thing looms large. My work computer turns itself on at 5:30 a.m., and then all I have to do is drag my coffee and myself to my desk to start work. to have a few hours of overlap with their schedules. You have to specify the user:Īuto-wakeups are very cool most of my SUSE colleagues are in Nuremberg, so I am crawling out of bed at 5 a.m. You may also use /etc/crontab, which is fast and easy, and everything is in one file. See man 5 cron to learn about all the time and date fields. You can create multiple cronjobs for different days and times. This example creates a root cron job to shut down every night at 11:15 p.m. Sleepiesįor computers that don’t need to be on all the time, good old cron will shut them down reliably. Anything that doesn’t need to be on all the time can be configured to turn on, do a job, and then shut down. Or, you can configure your Internet gateway to be on only at certain times. For example, you can wake up a backup server at a scheduled time, run your backups, and then shut it down until it’s time for the next backup. Save electricity as well as wear on your moving parts, and shut them down when they’re not needed. Some people are very proud of their lengthy uptimes, and now that we have kernel hot-patching that leaves only hardware failures requiring shutdowns. Some computers need to be on all the time, which is fine as long as it’s not about satisfying an uptime compulsion. For convenience and nerd creds, you can configure your Linux computers to wake up and shut down automatically. If your computers don’t need to be on then shut them down.
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