How to Change Default OS Entry in Ubuntu 20.04 Dual-Boot

April 12, 2020 — 4 Comments

Ubuntu 18.04

Dual-boot or multi-boot Ubuntu 20.04 with other operating systems? This tutorial will show beginners how to change the default OS entry in Ubuntu 20.04 desktop.

This is a graphical tool to configure the default Grub boot-loader in Ubuntu. It’s Grub Customizer, and available in Ubuntu universe repositories for Ubuntu 19.04 and higher.

1. Either install Grub Customizer via Ubuntu Software, or open terminal (Ctrl+Alt+T) and install the tool by running command:

sudo apt install grub-customizer

2. Then search for and launch the tool from application menu.

3. When Grub Customizer opens, do:

  • navigate to General settings tab.
  • Select an OS entry as default from the drop-down box after ‘predefined’
  • You may also change other settings: menu timeout, kernel parameters, font, background image, etc.
  • Finally click the Save button to apply changes.

That’s it. Enjoy!

I'm a freelance blogger who started using Ubuntu 5+ years ago and wishes to share my experiences and some useful tips with Ubuntu beginners and lovers. Please notify me if you find any typo/grammar/language mistakes. English is not my native language. Contact me on Google Plus or email to [email protected]

4 responses to How to Change Default OS Entry in Ubuntu 20.04 Dual-Boot

  1. I love and use grub-customizer. I also change the font colors and ad my own background image, which grub-customizer allows you to do. There are tutorials for that, or maybe Ji will also cover that Appearance setting too in another post.

  2. ThanX for mentioning ‘universe’ repositories, so I could enable this first in Ubuntu Desktop 20.04 and only then it started working…

  3. GRUB is an insane complexity crap! Need to read a ton of manuals to add a single entry, fcuk!!!

  4. I followed these instructions, selected “Ubuntu” as the default entry, and set the boot menu delay to 10 seconds (it was initially displayed as “0” in grub-customizer). However, I don’t see any change; the boot menu still waits 30 seconds. Any ideas?

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