How to Install and Uninstall shim-signed Package on Ubuntu 20.10 (Groovy Gorilla)

Last updated: May 16,2024

1. Install "shim-signed" package

This tutorial shows how to install shim-signed on Ubuntu 20.10 (Groovy Gorilla)


    
        
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                sudo apt update
            
                    
    
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                sudo apt install
            
                        
                shim-signed
            
                    
    
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2. Uninstall "shim-signed" package

In this section, we are going to explain the necessary steps to uninstall shim-signed on Ubuntu 20.10 (Groovy Gorilla):


    
        
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                sudo apt remove
            
                        
                shim-signed
            
                    
    
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                sudo apt autoclean && sudo apt autoremove
            
                    
    
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3. Information about the shim-signed package on Ubuntu 20.10 (Groovy Gorilla)

Package: shim-signed
Architecture: amd64
Version: 1.45+15+1552672080.a4a1fbe-0ubuntu2
Built-Using: shim (= 15+1552672080.a4a1fbe-0ubuntu2)
Priority: optional
Section: utils
Source: shim-signed (1.45)
Origin: Ubuntu
Maintainer: Steve Langasek
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Installed-Size: 2670
Depends: debconf (>= 0.5) | debconf-2.0, shim (= 15+1552672080.a4a1fbe-0ubuntu2), grub-efi-amd64-signed | grub-efi-arm64-signed, grub2-common (>= 2.04-1ubuntu24), mokutil (>= 0.3.0+1538710437.fb6250f-0ubuntu2), sbsigntool
Recommends: secureboot-db
Filename: pool/main/s/shim-signed/shim-signed_1.45+15+1552672080.a4a1fbe-0ubuntu2_amd64.deb
Size: 345788
MD5sum: fd08d7e4771c9f1e811d0feb9ce734a2
SHA1: 9aa72346e37942a0d26c19296bd3c4867c99b370
SHA256: f45f67d39d03eedc508293757070944133491e172e71f5c6178f0521ba3a8186
SHA512: bf2e41c7e043a1292a9edd40d01f9eaf90b37f59d67954c4eda03a8145977f4defc698d2957fb818b763bfbc2f0bca1056eea4330985a6ccd7c3e5b2ff0cfc9d
Description-en: 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-changing binary to be signed by the UEFI CA, while allowing
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.
Description-md5: a481805ba65b750cfdd6438a7d8539a2
Task: ubuntu-live, kubuntu-live, xubuntu-live, ubuntukylin-live, ubuntu-mate-live, ubuntu-budgie-live
Protected: yes
Important: yes