Edit Ubuntu GRUB Config: Complete Guide

2 years ago
Emily Johnson
1 minute

To modify the startup configuration file of Ubuntu, you need to edit the /etc/default/grub file. Please follow these steps:

  1. Open the terminal (Ctrl + Alt + T).
  2. The path to the default configuration file for the GRUB bootloader is /etc/default/grub.
sudo nano /etc/default/grub
  1. Find the boot configuration option you want to modify, such as GRUB_TIMEOUT (boot menu display time) or GRUB_CMDLINE_LINUX_DEFAULT (kernel boot parameters).
  2. Make the changes you want to make, then press Ctrl + O to save the changes, and Ctrl + X to exit the editor.
  3. Use the following command to update the GRUB configuration file:
sudo update-grub
  1. Restart your computer to apply the new startup configuration.

Please be aware that any changes to the startup configuration file may have adverse effects on the system, so please proceed with caution. It is recommended to backup the original configuration file before making any changes.

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