Enable building intel-iot live-server images.

debian/changelog

@@ -1,3 +1,9 @@
+livecd-rootfs (2.765.20) UNRELEASED; urgency=medium
+
+  * Enable building intel-iot live-server images (LP: #1980067).
+
+ -- Łukasz 'sil2100' Zemczak <lukasz.zemczak@ubuntu.com>  Fri, 17 Mar 2023 12:31:55 +0100
+
 livecd-rootfs (2.765.19) jammy; urgency=medium
 
   * auto/config: Add support for ubuntu core arm64 generic images (LP: #2009067)

live-build/auto/config

@@ -855,12 +855,18 @@ case $PROJECT in
 				# written generically to support both even though a lot of the
 				# time only one kernel is offered.
 
-				if [ $ARCH = riscv64 ]; then
-					# However, for RISC-V we only offer one kernel
-					variants='ga'
-				else
-					variants='ga hwe'
-				fi
+				case "$ARCH+${SUBARCH:-}" in
+					amd64+intel-iot)
+						variants='intel'
+						;;
+					riscv64*)
+						# However, for RISC-V we only offer one kernel
+						variants='ga'
+						;;
+					*)
+						variants='ga hwe'
+						;;
+				esac
 
 				for variant in $variants; do
 					if [ "$variant" = "ga" ]; then
@@ -869,6 +875,9 @@ case $PROJECT in
 					elif [ "$variant" = "hwe" ]; then
 						kernel_metapkg=linux-generic-hwe-$(lsb_release -sr)
 						flavor=generic-hwe
+					elif [ "$variant" = "intel" ]; then
+						kernel_metapkg=linux-intel-iotg
+						flavor=intel-iotg
 					else
 						echo "bogus variant: $variant"
 						exit 1

live-build/lb_binary_layered

@@ -56,9 +56,12 @@ build_layered_squashfs () {
 
 	Echo_message "lb_binary_layered: treating pass $pass"
 
+	# Per convention, we include the subarch name next to the project
+	PROJECT_FULL=$PROJECT${SUBARCH:+-$SUBARCH}
+
 	# Building squashfs filesystem & manifest
 	local overlay_dir="overlay.${pass}"
-	base="${PWD}/livecd.${PROJECT}.${pass}"
+	base="${PWD}/livecd.${PROJECT_FULL}.${pass}"
 	squashfs_f="${base}.squashfs"
 
 	# We have already treated that pass
@@ -113,7 +116,7 @@ build_layered_squashfs () {
 		create_manifest "chroot" "${squashfs_f_manifest}.full"
 
 		# Delta manifest
-		diff -NU0 ${PWD}/livecd.${PROJECT}.$(get_parent_pass $pass).manifest.full ${squashfs_f_manifest}.full|grep -v ^@ > $squashfs_f_manifest
+		diff -NU0 ${PWD}/livecd.${PROJECT_FULL}.$(get_parent_pass $pass).manifest.full ${squashfs_f_manifest}.full|grep -v ^@ > $squashfs_f_manifest
 
 		squashfs_f_size="${base}.size"
 		du -B 1 -s "overlay.${pass}/" | cut -f1 > "${squashfs_f_size}"
@@ -121,7 +124,7 @@ build_layered_squashfs () {
 		# We take first live pass for "global" ISO properties (used by installers and checkers):
 		# Prepare initrd + kernel
 		# Main manifest and size files
-		prefix="livecd.$PROJECT${SUBARCH:+-$SUBARCH}"
+		prefix="livecd.$PROJECT_FULL"
 		if [ ! -e "${prefix}.manifest" ] && $(is_live_layer "$pass"); then
 			totalsize=$(cat ${squashfs_f_size})
 			curpass="$pass"
@@ -130,7 +133,7 @@ build_layered_squashfs () {
 				# We climbed up the tree to the root layer, we are done
 				[ -z "$curpass" ] && break
 
-				totalsize=$(expr $totalsize + $(cat "${PWD}/livecd.${PROJECT}.${curpass}.size"))
+				totalsize=$(expr $totalsize + $(cat "${PWD}/livecd.${PROJECT_FULL}.${curpass}.size"))
 			done
 			echo ${totalsize} > "${prefix}.size"
 
@@ -141,7 +144,7 @@ build_layered_squashfs () {
 
 		if [ -f config/$pass.catalog-in.yaml ]; then
 			echo "Expanding catalog entry template for $pass"
-			usc_opts="--output livecd.${PROJECT}.install-sources.yaml \
+			usc_opts="--output livecd.${PROJECT_FULL}.install-sources.yaml \
 				--template config/$pass.catalog-in.yaml \
 				--size $(du -B 1 -s chroot/ | cut -f1) --squashfs ${pass}.squashfs \
 				--translations config/catalog-translations"
@@ -168,9 +171,9 @@ do
 done
 
 # Ubiquity-compatible removal manifest for ISO not using a layered-aware installer
-if [ -n "$(ls livecd.${PROJECT}.*install.live.manifest.full 2>/dev/null)" ] && \
-   [ -n "$(ls livecd.${PROJECT}.*install.manifest.full 2>/dev/null)" ]; then
-	echo "$(diff livecd.${PROJECT}.*install.live.manifest.full livecd.${PROJECT}.*install.manifest.full | awk '/^< / { print $2 }')" > livecd.${PROJECT}-manifest-remove
+if [ -n "$(ls livecd.${PROJECT_FULL}.*install.live.manifest.full 2>/dev/null)" ] && \
+   [ -n "$(ls livecd.${PROJECT_FULL}.*install.manifest.full 2>/dev/null)" ]; then
+	echo "$(diff livecd.${PROJECT_FULL}.*install.live.manifest.full livecd.${PROJECT_FULL}.*install.manifest.full | awk '/^< / { print $2 }')" > livecd.${PROJECT_FULL}-manifest-remove
 fi
 
 chmod 644 *.squashfs *.manifest* *.size

live-build/ubuntu-server/hooks/03-kernel-metapkg.chroot_early

@@ -8,6 +8,8 @@ case $PASS in
             kernel_metapkg=linux-generic
         elif [ "$flavor" = "generic-hwe" ]; then
             kernel_metapkg=linux-generic-hwe-$(lsb_release -sr)
+        elif [ "$flavor" = "intel-iotg" ]; then
+            kernel_metapkg=linux-intel-iotg
         else
             echo "bogus flavor: $flavor"
             exit 1

live-build/ubuntu-server/hooks/04-kernel-bits.binary

@@ -10,6 +10,8 @@ case $PASS in
         ;;
 esac
 
+PROJECT=$PROJECT${SUBARCH:+-$SUBARCH}
+
 # Fish out generated kernel image and initrd
 mv chroot/boot/initrd.img-* ${PWD}/livecd.${PROJECT}.initrd-$flavor
 mv chroot/boot/vmlinu?-* ${PWD}/livecd.${PROJECT}.kernel-$flavor