sudo mkdir -p /tmp/efi_mnt/EFI/BOOT /tmp/efi_mnt/loader/entries
sudo cp ~/new_iso/boot/EFI/BOOT/BOOTX64.EFI /tmp/efi_mnt/EFI/BOOT/
sudo cp ~/new_iso/boot/loader/loader.conf /tmp/efi_mnt/loader/
sudo cp ~/new_iso/boot/loader/entries/arch.conf /tmp/efi_mnt/loader/entries/