Yes, you can reboot directly from Ubuntu into your computer's UEFI interface without holding down any keyboard buttons. Here's how you can do it:
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Open a terminal window.
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Type the following command and press Enter:
sudo systemctl reboot --firmware-setup
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Your computer will reboot and take you to the UEFI (BIOS) interface without the need to hold down any keyboard buttons.
Please note that the exact steps and options may vary slightly depending on your computer's manufacturer and UEFI/BIOS version, but the above command should work on most systems running Ubuntu.