So I have put linux mint on a MS surface and now I am trying to get the keyboard to work. I am using this site to guide me through.
I am stuck on the step for Installing rEFInd.
4.Install rEFInd via sudo bash refind-install.sh --localkeys --shim shim.efi
after entering this command I get
ShimSource is shim.efi
Installing rEFInd on Linux....
ESP was found at /boot/efi using vfat
Found rEFInd installation in /boot/efi/EFI/refind; upgrading it.
Found sbsign at
Can't find sbsign, which is required to sign rEFInd with your own keys!
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