How to turn off the computer from the GRUB screen in dual boot

Question

I have Ubuntu and Windows 10 with dual boot in a scratch computer (I'm too inexperienced to use anything else). The problem is, every time I try to shutdown from Ubuntu, the computer just reboots and loads the GRUB screen, so that means I can only turn off the computer from Windows 10 and not from Ubuntu.

Can I turn off my PC from the GRUB screen? I do not want to have to turn off from Windows 10 every time I shut down the PC from Ubuntu.

score 45 · Accepted Answer · edited Feb 22 '17 at 20:19

45

From this interesting thread on ubuntuforums.org:

In the GRUB menu, press C and then enter halt.

Also as noted in the link, it is safe to simply press the power button while at the GRUB menu.

edited Feb 22 '17 at 20:19

Byte Commander

110,243

answered Feb 22 '17 at 18:18

WinEunuuchs2Unix

105,762

score 6 · Answer 2 · edited Jul 21 '20 at 02:05

6

In the GRUB command line, the equivalent of poweroff is halt:

grub> halt

edited Jul 21 '20 at 02:05

Zanna

72,312

answered May 08 '20 at 05:43

whbb98

69

score 4 · Answer 3 · answered Nov 11 '22 at 16:30

4

As per this page, you can do it by adding custom menu options.
sudo gedit /etc/grub.d/40_custom

Add these options:

 menuentry "Reboot" {
      reboot
}
menuentry "Shut Down" {
      halt
}

Update:
sudo update-grub

Reboot:
reboot

answered Nov 11 '22 at 16:30

Nav

1,149
13
26

score 1 · Answer 4 · answered Feb 22 '17 at 19:08

Have you tried to shutdown your computer from Ubuntu with one of these commands ? poweroff or sudo shutdown -h now ?? Your script responsible for shutting your computer off is maybe corrupt. If it is the case, these commands would do the job.

To explicitly answer your actual question (shutting down from the grub), I would hold the power button manually. I do so when I accidentally turn on my computer and finally don't want to :)

score 0 · Answer 5 · edited Jul 21 '20 at 02:07

0

In my case halt in GRUB hangs up the system and nothing happens. So I have to press the power key to poweroff the computer.

edited Jul 21 '20 at 02:07

Zanna

72,312

answered Jul 21 '20 at 01:23

wladicus

1

How to turn off the computer from the GRUB screen in dual boot

5 Answers5