black screen - can't boot after adding jpg image

Asked by archp2008 on 2013-12-08

I have a multiboot system with various windows installations and linux mint 15 mate. I am running the live cd. After using Grub customizer for a month or so I decided to add a clear blue background image. I downloaded a simple plain blue 640 by 480 jpg image of the sky (same resolution as the existing text). It tooked fine in the preview so I saved the new configuration and restarted my computer. I got a black screen with no text followed by the drive activity led going off and failure to boot. Any help in gettting back in would be much appreciated. I can supply more details but I need help in terminal commands, etc. to access grub list, etc.

Question information

Language:
Spanish Edit question
Status:
Solved
For:
Grub Customizer Edit question
Assignee:
No assignee Edit question
Solved by:
archp2008
Solved:
2013-12-09
Last query:
2013-12-09
Last reply:
2013-12-08

This question was reopened

archp2008 (archwparsons) said : #1

I looked back at a previous post of mine some months ago. You mentioned then that it was possible to install grub customizer in live cd mode. I did that and it was a simple matter to get into the mint partition and then access the appearance options and delete the image. There was an error about umount failed but, no matter, I rebooted and got back into my original boot menu which appears to be working as before.

archp2008 (archwparsons) said : #2

I looked back at a previous post of mine some months ago. You mentioned then that it was possible to install grub customizer in live cd mode. I did that and it was a simple matter to get into the mint partition and then access the appearance options and delete the image. There was an error about umount failed but, no matter, I rebooted and got back into my original boot menu which appears to be working as before.

archp2008 (archwparsons) said : #3

I would still like to know what problems there are regarding use of large fonts. How large is too large?

This depends on the screen resolution of grub. The problem occurs when the menu content cannot be rendered properly (not the contents - they are scrolled on overflow, but the borders and the help text on the bottom). So the higher the resolution the larger is the maximum font size. However the real font size also relies on the chosen font family so I also cannot create a table describing the maximum font size by resolution. You can only try increasing in small steps.

Grub customizer 4.0 (not yet released) shows a general warning about this problem. So users know about the risks and how to fix it.

archp2008 (archwparsons) said : #5

I tried decreasing font size from 12 to 6 just to see what would happen but half of each line of text did not show. I returned the font size to 12 and tried increasing resolution to 1400 x 1050 by 24. The resolution defaulted downwards to 1280 by 1024 by 24. I still need to view a discussion on selecting suitable image characteristics and font and background colors to make the text visible on the image. I am thinking of trying a blue sky image. What colors of font and background would work on top of that image? Is jpg the best format for the image?

archp2008 (archwparsons) said : #6

I have a beautiful view from an airplane looking at deep blue sky just with thick white clouds below and to the right. Resolution 1280x1024x24 Image sky blue wallpaper background.jpg left background as transparent and chose white bold 18pts for normal and highlight to match the clouds. Thanks very much for your help.

archp2008 (archwparsons) said : #7

Will look forward to release 4.0