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add Discovering the firmware type , dopied from https://fedoraproject.org/wiki/GRUB_2#Discovering_the_firmware_type

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Sérgio Basto 2023-01-07 04:21:37 +00:00
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modules/system-administrators-guide/pages/kernel-module-driver-configuration/Working_with_the_GRUB_2_Boot_Loader.adoc
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@ -1,4 +1,3 @@
:experimental:
include::{partialsdir}/entities.adoc[]
@ -532,6 +531,15 @@ Reinstalling GRUB 2 is a convenient way to fix certain problems usually caused b
* Adding the boot information to another drive.
[[Discovering the firmware type]]
=== Discovering the firmware type ===
To discover what firmware your machine uses, run the following command:
# [ -d /sys/firmware/efi ] && echo UEFI || echo BIOS
The output returns only UEFI or BIOS, depending on the firmware your machine runs.
[[sec-grub2-reinstall_on_BIOS-Based_Machines]]
=== Reinstalling GRUB 2 on BIOS-Based Machines