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I have an strange behaviour, i boot my pc, and instead of grub menu, i got a black screeen. I suppose it works well because i dont change the default option, then after 10 seconds, it boots ubuntu in graphical mode (as i wanted, instead of kernel messages in console) and i get into the login screen in graphical interface.

Some kind grub isnt displayed properly. Any ideas ?? I want my grub back again.

Boot message ( i repaired the boot with boot-repair, and i got this information): https://paste.ubuntu.com/p/MdtkrKWWpV/

Edit requested by comment:

  • No dual boot ( only ubuntu system)
  • If i press ESc then grub appears but with black and white screen not default purple ubuntu theme. Also is a kind of simple menu ( ex: without memtest option).
Eduardo Gutierrez
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1 Answers1

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On a computer with just Ubuntu installed (no other OS), GRUB elegantly hides its menu during the 10 sec timeout by default (unless you hit escape during the timeout), because in most cases, there's only one choice anyways and that way the user is less likely to be confused by the GRUB menu.

If you'd like to always see the GRUB menu, change the default:

sudo nano /etc/default/grub

(replace nano with gedit if you'd like a GUI, or with vi if you can remember how to use that). Look for:

 GRUB_TIMEOUT_STYLE=hidden

and change that into

 GRUB_TIMEOUT_STYLE=menu

Next, update the GRUB config in the boot area:

 sudo update-grub

You will now see the menu every time you boot. More info in the manual pages.

Adriaan
  • 332