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Last updated: April 22, 2022 Package name Available in latest Ubuntu? Oldest supported Ubuntu When did it become a Snap installer? lxd Yes 20.04LTS (“focal”) 18.10 (“cosmic”) chromium-browser Yes 20.04LTS (“focal”) 19.10 (“eoan”) snapcraft Yes 20.04LTS (“focal”) 19.10 (“eoan”) maas No 20.04LTS (“focal”) 20.04LTS (“focal”) firefox Yes 22.04LTS (“jammy”) 22.04LTS (“jammy”) Data sourced from Ubuntu Packages and Canonical Launchpad

Requirements (install with dnf) shim sbsigntools mokutil nss-tools openssl kernel*-devel Steps Create and cd into a working directory, which in this tutorial will be named kernel-sign: 1 mkdir kernel-sign/ && cd $_ Prepare an environment variable that contains the kernel version that wants to be signed, which in this tutorial will be called sign_kver: kernel.env: 1 2 sign_kver="<kernel-version>" # example: 5....