Ubuntu 12.04 no GRUB interface at startup
Actually, I think it really is trying to display, but it seems that at the time when that's supposed to happen, my monitor gives me an 'Out of Range' error message and my computer boots into Ubuntu after a few seconds. Had this same problem with Fedora 17 some time ago, openSUSE's GRUB interface displays fine though.
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In the simplest case, GRUB will hide the menu if GRUB_HIDDEN_TIMEOUT is set in /etc/default/grub. To show the menu you must comment out this line and update GRUB's boot configuration file.
From a terminal, open the file with gedit as root: Code:
gksudo gedit /etc/default/grub Code:
#GRUB_HIDDEN_TIMEOUT=5 Code:
GRUB_TIMEOUT=30 Code:
sudo update-grub Code:
GRUB_GFXMODE=1024x768 Save the changes and update GRUB's configuration file as shown above. Reboot. At this point you should see GRUB's boot menu. To check the modes that GRUB support for your card, do this.
Hope this helps. |
Weird, the timeout AND graphics mode lines were commented and the timeout value somehow got set to zero. No matter, just uncommented the graphics mode line, left the graphics mode at it's original setting (640x480), uncommented the timeout line, set it to five, and that did the trick.
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If GRUB_GFXMODE is commented out, Ubuntu set's it to auto when generating the configuration file. In auto, GRUB selects the first working mode. Depending on the video card, this mode may not work. I have an nVidia FX5200 card, and when set to auto, GRUB selected the 640x400 mode, which resulted in a blank display.
BTW: Auto is also a valid setting for GRUB_GFXMODE. See: Code:
info -f grub -n 'Simple configuration' |
GRUB menu finally fixed!!!
Quote:
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You should mark this thread Solved. You will find it under Thread Tools at the top of the page here. Only the OP can do that.
People that use the forum search tools for this problem will appreciate it, particularly since this is a common problem. EDIT You should be able to see the grub menu when you boot when set to hide by hitting the Shift key when the screen menu should be visible. This is supposed to bring it up in case you need to boot recovery mode or an older kernel. I prefer to see the menu all the time. |
Thanks for this easy to understand explanation of the `out of range ` problem.
This stopped me from using all Ubuntu releases after 8.04 because of the change from GRUB to GRUB 2. Finally, I see light where before there was darkness. Brilliant tutorial and Thank you so much. |
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