Pin live boot medium to versioned ISO label

iso/builder/auto/config

@@ -16,6 +16,12 @@ else
     LB_LINUX_PACKAGES="linux-image"
 fi
 
+if [ -n "${BEE_ISO_VOLUME:-}" ]; then
+    LB_ISO_VOLUME="${BEE_ISO_VOLUME}"
+else
+    LB_ISO_VOLUME="EASY_BEE_${BEE_GPU_VENDOR_UPPER:-NVIDIA}"
+fi
+
 lb config noauto \
     --distribution bookworm \
     --architectures amd64 \
@@ -30,9 +36,9 @@ lb config noauto \
     --linux-flavours "amd64" \
     --linux-packages "${LB_LINUX_PACKAGES}" \
     --memtest memtest86+ \
-    --iso-volume "EASY_BEE_${BEE_GPU_VENDOR_UPPER:-NVIDIA}" \
+    --iso-volume "${LB_ISO_VOLUME}" \
     --iso-application "EASY-BEE-${BEE_GPU_VENDOR_UPPER:-NVIDIA}" \
-    --bootappend-live "boot=live components video=1920x1080 console=ttyS0,115200n8 console=tty0 loglevel=3 systemd.show_status=1 username=bee user-fullname=Bee modprobe.blacklist=nouveau,snd_hda_intel,snd_hda_codec_realtek,snd_hda_codec_generic,soundcore" \
+    --bootappend-live "boot=live live-media-label=${LB_ISO_VOLUME} components video=1920x1080 console=ttyS0,115200n8 console=tty0 loglevel=3 systemd.show_status=1 username=bee user-fullname=Bee modprobe.blacklist=nouveau,snd_hda_intel,snd_hda_codec_realtek,snd_hda_codec_generic,soundcore" \
     --debootstrap-options "--include=ca-certificates" \
     --apt-recommends false \
     --chroot-squashfs-compression-type zstd \

iso/builder/build.sh

@@ -536,6 +536,11 @@ validate_iso_live_boot_entries() {
         rm -f "$grub_cfg" "$isolinux_cfg"
         exit 1
     }
+    grep -q 'linux .*live-media-label=EASY_BEE_' "$grub_cfg" || {
+        echo "ERROR: GRUB live entry is missing live-media-label pinning" >&2
+        rm -f "$grub_cfg" "$isolinux_cfg"
+        exit 1
+    }
 
     grep -q 'append .*boot=live ' "$isolinux_cfg" || {
         echo "ERROR: isolinux live entry is missing boot=live" >&2
@@ -547,6 +552,11 @@ validate_iso_live_boot_entries() {
         rm -f "$grub_cfg" "$isolinux_cfg"
         exit 1
     }
+    grep -q 'append .*live-media-label=EASY_BEE_' "$isolinux_cfg" || {
+        echo "ERROR: isolinux live entry is missing live-media-label pinning" >&2
+        rm -f "$grub_cfg" "$isolinux_cfg"
+        exit 1
+    }
 
     rm -f "$grub_cfg" "$isolinux_cfg"
     echo "=== live boot validation OK ==="
@@ -1008,6 +1018,7 @@ PROJECT_VERSION_EFFECTIVE="$(resolve_project_version)"
 ISO_BASENAME="easy-bee-${BUILD_VARIANT}-v${PROJECT_VERSION_EFFECTIVE}-amd64"
 # Versioned output directory: dist/easy-bee-v4.1/ — all final artefacts live here.
 OUT_DIR="${DIST_DIR}/easy-bee-v${PROJECT_VERSION_EFFECTIVE}"
+ISO_VERSION_LABEL_TOKEN="$(printf '%s' "${PROJECT_VERSION_EFFECTIVE}" | tr '[:lower:].-' '[:upper:]__')"
 mkdir -p "${OUT_DIR}"
 LOG_DIR="${OUT_DIR}/${ISO_BASENAME}.logs"
 LOG_ARCHIVE="${OUT_DIR}/${ISO_BASENAME}.logs.tar.gz"
@@ -1589,7 +1600,8 @@ echo "=== building ISO (variant: ${BUILD_VARIANT}) ==="
 
 # Export for auto/config
 BEE_GPU_VENDOR_UPPER="$(echo "${BUILD_VARIANT}" | tr 'a-z-' 'A-Z_')"
-export BEE_GPU_VENDOR_UPPER
+BEE_ISO_VOLUME="EASY_BEE_${BEE_GPU_VENDOR_UPPER}_V${ISO_VERSION_LABEL_TOKEN}"
+export BEE_GPU_VENDOR_UPPER BEE_ISO_VOLUME
 
 cd "${LB_DIR}"
 run_step_sh "live-build clean" "80-lb-clean" "lb clean --all 2>&1 | tail -3"