Author Topic: Grub on Backbox 3.05 - [SOLVED]  (Read 5687 times)

darksabersan

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on: July 01, 2013, 07:24:51 PM
Hello everybody,

Quote
My configuration:
Backbox 3.05 amd64
Kernel: 3.5.0-34-generic
Dual boot with Windows Seven 64

I have an issue to modify my Grub.
I try it manually with this command:
Quote
geany /etc/default/grub

Then I modified the line by:
Code: [Select]
GRUB_GFXMODE="1024x768"
But no result.

After that, I download Grub Custimizer 3.0.4 and it is exactly the same problem.
No change.

Do you have any idea?
Thank you in advance for your help.

Darksabersan.
« Last Edit: July 02, 2013, 10:38:22 AM by darksabersan »



b4d_bl0ck

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Reply #1 on: July 01, 2013, 09:11:43 PM
Hi darksabersan,
I don't know if quotes around resolution may give problems... Maybe try to remove them and update grub.
Have you tried modifying the grub.cfg for the desired resolution? (Yes, it says not to edit it, but we like low level tweaking ;D) Just for testing (if you forget to edit it back it will be always rebuilt with configuration files parameters next time, so don't worry, or just update grub).
On my laptop I built a grub.cfg from scratch, in which there are:
Code: [Select]
set gfxmode="1366x768"
set gfxpayload=keep
Maybe you can try to edit yours putting your values for these parameters.

You can try pastebining your grub.cfg, anyways it can also be an hardware issue needing some tweakings into grub files to support that resolution, but i can't say that... Try to search online how to test for supported resolutions and modes.

Have fun with BackBox! ;)

bool secure = check_paranoia() ? true : false;


TH3CR4CK3R

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Reply #2 on: July 02, 2013, 03:23:39 AM
after making any changes to grub, you need to update grub for them to take effect :)

Code: [Select]
update-grub
« Last Edit: July 02, 2013, 03:25:44 AM by TH3CR4CK3R »



b4d_bl0ck

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Reply #3 on: July 02, 2013, 08:16:53 AM
after making any changes to grub, you need to update grub for them to take effect :)

Code: [Select]
update-grub
Exactly  ;)
darksabersan, i assumed you updated after modifying... don't tell us you didn't do that  ???
Anyways with grub customizer there should be no needing to update grub via terminal, because, as i can see, it automatically generates a new grub.cfg when you click on save button. So in this case the issue seems to be present (unless you didn't save  ;D LOL).
But i guess you can solve searching around the web.

Have fun!

bool secure = check_paranoia() ? true : false;


darksabersan

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Reply #4 on: July 02, 2013, 10:35:37 AM
Hi b4d_bl0ck,

Finally I was able to manage grub via the terminal.
  • First, I do some mistake by choosing the wrong GRUB_GFXMODE resolution.
  • Second, the same about the background format. *.tga was the solution.

The main bad idea was to use grub customizer for doing the change.
So, all is solve.

Thank you to you and TH3CR4CK3R for your comment.

 ;)

Darksabersan.