Re: grub-uninstall

[Andrei Borzenkov]

On 08.11.2022 23:12, Pascal Hambourg wrote:
> Then you can wipe the boot image in the first 440 bytes of the MBR and
> preserve the partition table with
>
>    dd if=/dev/zero of=/dev/sda count=1 bs=440

This leaves final 0x55aa signature which may fool BIOS into believing 
there still *is* boot code.

> IMO it is not worth wiping the core image sectors. They are useless
> without the boot image.

Yes, but it is still better to get "no boot device found" from BIOS than 
blank screen because boot code attempted to load some garbage and 
silently crashed or looped.