Ubuntu

Binary package “shim” in ubuntu trusty

  1. Trusty (14.04)
  2. shim

boot loader to chain-load signed boot loaders under Secure Boot

 This package provides a minimalist boot loader which allows verifying
 signatures of other UEFI binaries against either the Secure Boot DB/DBX or
 against a built-in signature database. Its purpose is to allow a small,
 infrequently-changing binary to be signed by the UEFI CA, while allowing
 an OS distributor to revision their main bootloader independently of the CA.

Source package