I used "efibootmgr" tool to modify EFI boot order, but after a system reboot, the boot priority modification cannot save. Why and is there an alternative?
In order to successfully use efibootmgr, the EFI variables file system must be accessible. This is a problem since efibootmgr cannot access EFI variables due to protection from the chipset as a reaction to prevent security threats. For an alternative, use SUM.
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