deb: remove ubuntu 20.04 "focal", as it reached EOL

.github/workflows/ci.yml

@@ -34,7 +34,6 @@ jobs:
           - debian-bullseye
           - debian-bookworm
           - debian-trixie
-          - ubuntu-focal
           - ubuntu-jammy
           - ubuntu-noble
           - ubuntu-oracular

Jenkinsfile

@@ -12,7 +12,6 @@ def pkgs = [
     [target: "fedora-42",                image: "fedora:42",                              arches: ["amd64", "aarch64"]],          // EOL: May 13, 2026
     [target: "raspbian-bullseye",        image: "balenalib/rpi-raspbian:bullseye",        arches: ["armhf"]],                     // Debian/Raspbian 11 (stable)
     [target: "raspbian-bookworm",        image: "balenalib/rpi-raspbian:bookworm",        arches: ["armhf"]],                     // Debian/Raspbian 12 (next stable)
-    [target: "ubuntu-focal",             image: "ubuntu:focal",                           arches: ["amd64", "aarch64", "armhf"]], // Ubuntu 20.04 LTS (End of support: April, 2025. EOL: April, 2030)
     [target: "ubuntu-jammy",             image: "ubuntu:jammy",                           arches: ["amd64", "aarch64", "armhf"]], // Ubuntu 22.04 LTS (End of support: June,  2027. EOL: April, 2032)
     [target: "ubuntu-noble",             image: "ubuntu:noble",                           arches: ["amd64", "aarch64", "armhf"]], // Ubuntu 24.04 LTS (End of support: June,  2029. EOL: April, 2034)
     [target: "ubuntu-oracular",          image: "ubuntu:oracular",                        arches: ["amd64", "aarch64", "armhf"]], // Ubuntu 24.10 (EOL: July, 2025)

Makefile

@@ -99,7 +99,7 @@ static: checkout ## build static-compiled packages
 
 .PHONY: verify
 verify: ## verify installation of packages
-# to verify using packages from staging, use: make VERIFY_PACKAGE_REPO=stage IMAGE=ubuntu:focal verify
+# to verify using packages from staging, use: make VERIFY_PACKAGE_REPO=stage IMAGE=ubuntu:noble verify
 	docker run $(VERIFY_PLATFORM) --rm -i \
 		-v "$$(pwd):/v" \
 		-e DEBIAN_FRONTEND=noninteractive \

deb/Makefile

@@ -54,7 +54,7 @@ RUN?=docker run --rm \
 	debbuild-$@/$(ARCH)
 
 DEBIAN_VERSIONS ?= debian-bullseye debian-bookworm debian-trixie
-UBUNTU_VERSIONS ?= ubuntu-focal ubuntu-jammy ubuntu-noble ubuntu-oracular ubuntu-plucky
+UBUNTU_VERSIONS ?= ubuntu-jammy ubuntu-noble ubuntu-oracular ubuntu-plucky
 RASPBIAN_VERSIONS ?= raspbian-bullseye raspbian-bookworm
 DISTROS := $(DEBIAN_VERSIONS) $(UBUNTU_VERSIONS) $(RASPBIAN_VERSIONS)
 

deb/README.md

@@ -29,7 +29,7 @@ make ubuntu
 
 ## Specifying a specific distro version
 ```shell
-make ubuntu-focal
+make ubuntu-noble
 ```
 
 ## Building the for all distros