Move /mnt/boot/EFI/boot/boot圆4.efi to /mnt/boot/EFI/boot/loader.efi.Exit from the chroot but do not umount anything.The easiest way is to do all the setup is the following, just before rebooting: Booting in Secure Boot will not work for the new installation, as the vmlinuz has not been registered within its loader. After completing the Installation guide, you should do two more things. I have done the installation with systemd's bootctl Systemd-boot (old Gummiboot). (Discuss in Talk:Microsoft Surface Pro 3) Notes: These steps are on how to support Secure Boot for Arch Linux, need to try it in a regular computer. You will be presented with the UEFI Setup Menu.With the device powered off (or rebooting, but better play safe).You can change it from 'Alternate Boot order' in the UEFI Setup There are three types of boots in the Surface Pro 3 explained here: Also, you may want to avoid disabling Secure Boot as this will cause each boot to display an ugly bright red background intentionally clashing with the 'Surface' splash logo. To boot from USB, you will need to instruct the tablet to boot from USB or SD Card. 4.1 Invalid signature detected check secure boot policy in setup.

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