Binary package “shim-signed” in ubuntu precise
Secure Boot chain-loading bootloader (Microsoft-signed binary)
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-
an OS distributor to revision their main bootloader independently of the CA.
.
This package contains the version of the bootloader binary signed by the
Microsoft UEFI CA.