Customize GRUB in Ubuntu

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First things first, why we even need to mess with this thing in the first place. Grub is that ***** little bootloader that pops up before your operating system loads and lets you choose which OS to use. Its kind of like a menu at a restaurant except instead of burgers, it’s got Linux distros.

Now, if you’re happy with the default Grub settings, then by all means, keep on truckin’. But for those who want to add some personality and flair to their boot process, read on!

Step 1: Open up a terminal window (you can do this by pressing Ctrl + Alt + T) and type in “sudo nano /etc/default/grub”. This will open the Grub configuration file in your default text editor.

Step 2: Scroll down to the line that says “GRUB_DEFAULT=0” (or whatever number corresponds to the OS you want to boot by default). Change this value to whichever OS you prefer, like so: “GRUB_DEFAULT=1”.

Step 3: Save and close the file. Then type in “sudo update-grub” to apply your changes. This will regenerate the Grub menu with your new settings.

Step 4 (optional): If you want to get really fancy, you can add some custom text or images to your boot menu by editing the /etc/grub.d directory. For example, let’s say you have a cool logo for Ubuntu that you want to display before it loads. First, copy and paste this line into grub.cfg: “set gfxpayload=keep”. Then create a new file in /boot called “logo.png” (or whatever name you prefer) and add your image inside. Finally, edit the 40_custom.lst file to include these lines:


# This script is used to display a cool logo for Ubuntu before it loads.
# To use it, first copy and paste the line "set gfxpayload=keep" into grub.cfg.
# Then, create a new file in /boot called "logo.png" (or any preferred name) and add your image inside.
# Finally, edit the 40_custom.lst file to include the following lines:

# This line sets the menu entry name to "Ubuntu".
menuentry 'Ubuntu' {
    # This line keeps the graphics payload.
    set gfxpayload=keep
    # This line loads the graphics terminal.
    insmod gfxterm
    # This line sets the terminal to rescue mode.
    terminal --rescue
    # This line specifies the location of the Linux kernel and its parameters.
    linux /vmlinuz root=UUID=your-uuid-here ro quiet splash $vt_handoff
    # This line specifies the location of the initial ramdisk.
    initrd /initrd.img
}

Replace “your-uuid-here” with the UUID of your Ubuntu installation (you can find this by running “sudo blkid”).

Step 5: Save and close all files, then run “sudo update-grub”. Your new boot menu should now include your custom logo!

And there you have it a customized Grub menu that’ll make your computer boot process feel like a work of art.

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