In Linux, the GRUB (GRand Unified Bootloader) timeout is the amount of time displayed on the screen before the system automatically boots into the default operating system. This timeout can be changed to speed up or delay boot time into the operating system.

This article will explain the instructions to change the GRUB Timeout in Linux.

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Help grub config
info -f grub -n 'Simple configuration'

What is GRUB in Linux? What is it Used for?
https://itslinuxfoss.com/grub-linux-used-for/
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