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Changes To Grub Customizer LM 21.1 Cinnamon <Solved>

Also see my Post in my tread on brightening grub


If you add the line in /etc/default/grub - some distros prefer ,png over .jpg/.jpeg so I usually just use a picture in /boot/grub.

Also, you can have more than one picture in /boot/grub - it will take the first one alphabetically.

Tried both and unfortunately it doesn't work.
I still have a all black background with white letters.
Hi Alexzee can you give us a look at your /etc/default/grub file?
Hi Alexzee can you give us a look at your /etc/default/grub file?
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)

# Uncomment to disable graphical terminal (grub-pc only)

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux

# Uncomment to disable generation of recovery mode menu entries

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"
Last edited:
Alexzee ... just checking: did you convert the Ocean.jpeg to Ocean.png using the convert command in post #37? Does the command:
identify Ocean.png
confirm that the pic is 8-bit and RGB format?

You could also try commenting out the config: GRUB_GFXMODE=1920x1080, in your grub file to let grub decide it's own mode. Dunno how relevant that it, but in my case, it's commented out and works.

Post #45 helped!
I edited the /etc/default/grub file and got rid of the quotation marks before the forward slash before boot and after the png and updated grub.
This is what I changed it too and rebooted.

I now have the picture when the Grub Menu appears!
Glad it's finally working for you , enjoy! :)

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