Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I am trying to use grub-customizer to add a custom background image and use the Ubuntu Condensed font. The preview looks fine:

enter image description here

But when I actually boot up, I get a messed-up configuration. The text is messed-up, with "unknown character" symbols appearing for the box around the boot menu options (because apparently only the default grub font has these special characters?). However, the boot options are in the Ubuntu font. There is only a black screen as the background.

I'm trying to use a 1366x768 (same as my screen res) .png as the background image. This should be compatible, right? What can I do to get a background image working?

Sorry for the wait:

Boot screen closeup showing glitched Ubuntu font and unrecognized characters Entire screen

share|improve this question
Still , a camera-made screenshot would help. Please try to provide one. – hexafraction Nov 29 '12 at 1:18
OK. I will post a photo tomorrow. – WindowsEscapist Nov 29 '12 at 3:08
Sorry for the delay, I need to get a piece of additional hardware (camera is SDHC, laptop can only read SD). Will post tomorrow. – WindowsEscapist Nov 30 '12 at 12:18
up vote 2 down vote accepted

Info about changing GRUB font to Ubuntu-Mono that I should have found earlier:

In this question, OP tried to change font without results. Problem appears to be a bug with ascending order glyphs as per this answer.

So basically I can't use anything from the Ubuntu Font Family for my GRUB font (sad but true) until the bug is fixed.

Info about background image:

If no option is specified in /etc/default/grub, GRUB will use the first found image in /boot/grub. The image must in RGB colorspace and, if a JPEG, 8-bit. GRUB will automatically detect the screen resolution, no configuration needed, and stretch/shrink the image if necessary (from

So to sum up, all that was needed was for me to just go with the default font (no way around it) and edit my image in GIMP to fit the parameters.

share|improve this answer

A very detailed information is available in the following page. Just follow the instructions.

Hope it helps.

share|improve this answer
Just a quick question - the page was last current for Lucid Lynx. Does this impact anything? – WindowsEscapist Dec 1 '12 at 21:44
Please see the FAQ about adding bare links. Thank you for the help regardless - much appreciated. – WindowsEscapist Dec 2 '12 at 0:35

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.