Replace LiveBuild with mkosi

.github/workflows/daily-8.1.yml

@@ -16,8 +16,8 @@ jobs:
         include:
           - runner: ubuntu-24.04
             arch: amd64
-          - runner: ubuntu-24.04-arm
-            arch: arm64
+          # - runner: ubuntu-24.04-arm
+          #   arch: arm64
     runs-on: ${{ matrix.runner }}
 
     container:
@@ -32,4 +32,4 @@ jobs:
 
     - name: Build and upload daily .iso
       run: |
-        ./workflows.sh etc/terraform-daily-8.1-azure-${{ matrix.arch }}.conf "${{ secrets.key }}" "${{ secrets.secret }}" "${{ secrets.endpoint }}" "${{ secrets.bucket }}"
+        ./build.sh etc/terraform-daily-8.1-azure-${{ matrix.arch }}.conf

build.sh

@@ -24,17 +24,15 @@ echo -e "
 "
 
 apt-get update
-apt-get install -y live-build patch gnupg2 binutils zstd
+apt-get install -y mkosi patch gnupg2 binutils zstd
+mkosi dependencies | xargs -d '\n' apt-get install -y
 
 # The Debian repositories don't seem to have the `ubuntu-keyring` or `ubuntu-archive-keyring` packages
 # anymore, so we add the archive keys manually. This may need to be updated if Ubuntu changes their signing keys
 # To get the current key ID, find `ubuntu-keyring-xxxx-archive.gpg` in /etc/apt/trusted.gpg.d on a running
 # system and run `gpg --keyring /etc/apt/trusted.gpg.d/ubuntu-keyring-xxxx-archive.gpg --list-public-keys `
 gpg --homedir /tmp --no-default-keyring --keyring /etc/apt/trusted.gpg --recv-keys --keyserver keyserver.ubuntu.com F6ECB3762474EDA9D21B7022871920D1991BC93C
 
-# TODO: Remove this once debootstrap can natively build noble images:
-ln -sfn /usr/share/debootstrap/scripts/gutsy /usr/share/debootstrap/scripts/noble
-
 build () {
   BUILD_ARCH="$1"
 
@@ -53,39 +51,35 @@ build () {
     cp "config/appcenter/appcenter.key.binary" "config/archives/appcenter.key.binary"
   fi
 
+  YYYYMMDD="$(date +%Y%m%d)"
+  OUTPUT_DIR="$BASE_DIR/builds/$BUILD_ARCH"
+  mkdir -p "$OUTPUT_DIR"
+  FNAME="elementaryos-$VERSION-$CHANNEL-$BUILD_ARCH.$YYYYMMDD$OUTPUT_SUFFIX"
+
   echo -e "
 #------------------#
-# LIVE-BUILD CLEAN #
+# MKOSI CLEAN #
 #------------------#
 "
-  lb clean
-
-  echo -e "
-#-------------------#
-# LIVE-BUILD CONFIG #
-#-------------------#
-"
-  lb config
+  mkosi clean
 
   echo -e "
 #------------------#
-# LIVE-BUILD BUILD #
+# MKOSI BUILD #
 #------------------#
 "
-  lb build
+  mkosi build \
+    --release="$BASECODENAME" \
+    --mirror="$MIRROR_URL" \
+    --ouput=$FNAME \
+    --output-directory=$OUTPUT_DIR
 
   echo -e "
 #---------------------------#
 # MOVE OUTPUT TO BUILDS DIR #
 #---------------------------#
 "
 
-  YYYYMMDD="$(date +%Y%m%d)"
-  OUTPUT_DIR="$BASE_DIR/builds/$BUILD_ARCH"
-  mkdir -p "$OUTPUT_DIR"
-  FNAME="elementaryos-$VERSION-$CHANNEL-$BUILD_ARCH.$YYYYMMDD$OUTPUT_SUFFIX"
-  mv "$BASE_DIR/tmp/$BUILD_ARCH/live-image-$BUILD_ARCH.hybrid.iso" "$OUTPUT_DIR/${FNAME}.iso"
-
   # cd into output to so {FNAME}.sha256.txt only
   # includes the filename and not the path to
   # our file.

etc/mkosi.conf

@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+# SPDX-FileCopyrightText: 2026 elementary, Inc. (https://elementary.io)
+
+[Distribution]
+Distribution=ubuntu
+Repositories=main restricted universe multiverse
+
+[Output]
+Format=disk
+
+[Content]
+Packages=
+    linux-image-generic
+    systemd-boot
+Bootable=yes