This is the command sbattach that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
sbattach - UEFI secure boot detached signature tool
SYNOPSIS
sbattach --attach <sigfile> <efi-boot-image>
sbattach --detach <sigfile> [--remove] <efi-boot-image>
sbattach --remove <efi-boot-image>
DESCRIPTION
Attach or detach a signature file to/from a boot image
OPTIONS
--attach <sigfile>
set <sigfile> as the boot image's signature table
--detach <sigfile>
copy the boot image's signature table to <sigfile>
--remove
remove the boot image's signature table from the original file
Use sbattach online using onworks.net services