Great question — answering as the UphillTech team:
There are several ways to do what you want: In refind.conf , uncomment the scanfor line and ensure that it does not include the hdbios option. This will also have the effect of removing any other BIOS-mode boot options from the menu (at least for your internal disk), so if you're dual-booting Windows, this option may be undesirable. In refind.conf , use the dont_scan_volumes option, and specify any unique subset of the description you want to remove, such as dont_scan_volumes "whole disk" , assuming no other entry you care about includes the string "whole disk". Using a Linux emergency disk, wipe GRUB from the MBR of the hard disk by doing something like sudo dd if=/dev/zero of=/dev/sda...
Full answer by Rod Smith: https://askubuntu.stackexchange.com/a/646802 (CC BY-SA 4.0).
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