Introduction

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To set the timeout for auto-boot, follow these steps:

Step 1: Open the GRUB Configuration File

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Open a terminal and run the following command to edit the file with root privileges:

sudo vim /etc/default/grub

Step 2: Set the Timeout

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Adjust the GRUB_TIMEOUT to the number of seconds you want GRUB to wait before automatically booting the default entry. For example, to set a 10-second timeout:

GRUB_TIMEOUT=10

Step 4: Save and Exit

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Save the changes by :wq

Step 5: Update GRUB Configuration

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After edited the GRUB configuration file, regenerate the GRUB configuration:

sudo grub-mkconfig -o /boot/grub/grub.cfg

Step 6: Reboot

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Restart your computer to see the changes take effect.