Handle boot files via regular rootfs package machanisms

Just install the kernel package to the rootfs /boot directory and add a step
to the rootfs package to move /boot data out of the squasfs image.

Add linux package as regular dependency to the rootfs.

Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>

board/alix/ROOTFS

@@ -8,3 +8,4 @@ btrfs-progs
 dosfstools
 nftables
 dhcpcd
+linux

board/rpi3/ROOTFS

@@ -11,3 +11,4 @@ kbd
 firmware-rpi3
 dhcpcd
 linux-firmware-rpi3
+linux-rpi3

pkg/linux-rpi3/build

@@ -30,7 +30,10 @@ deploy() {
 	local SOURCE="$1"
 	local DEPLOY="$2"
 
-	install -m 755 "arch/arm/boot/zImage" "$DEPLOY/vmlinuz"
+	mkdir -p "$DEPLOY/boot"
+	cp "arch/arm/boot/zImage" "$DEPLOY/boot/vmlinuz"
+
+	echo "boot/vmlinuz m 555 0 0" > "$DEPLOY/rootfs_files.txt"
 }
 
 check_update() {

pkg/linux/build

@@ -32,7 +32,10 @@ deploy() {
 	local SOURCE="$1"
 	local DEPLOY="$2"
 
-	install -m 755 "arch/$LINUX_CPU/boot/$LINUX_TGT" "$DEPLOY/vmlinuz"
+	mkdir -p "$DEPLOY/boot"
+	cp "arch/$LINUX_CPU/boot/$LINUX_TGT" "$DEPLOY/boot/vmlinuz"
+
+	echo "boot/vmlinuz m 555 0 0" > "$DEPLOY/rootfs_files.txt"
 }
 
 check_update() {

pkg/release-alix/build

@@ -1,4 +1,4 @@
-DEPENDS="rootfs linux"
+DEPENDS="rootfs"
 
 build() {
 	local SOURCE="$1"

pkg/release-rpi3/build

@@ -1,4 +1,4 @@
-DEPENDS="rootfs linux-rpi3 boot-rpi3"
+DEPENDS="rootfs boot-rpi3"
 
 build() {
 	local SOURCE="$1"

pkg/rootfs/build

@@ -82,6 +82,13 @@ build() {
 	sed -i 's#etc/#cfg/preserve/etc/#g' "$DEPLOY/pseudo"
 	sed -i 's#var/lib/#cfg/preserve/var_lib/#g' "$DEPLOY/pseudo"
 	sed -i 's#usr/#cfg/preserve/usr/#g' "$DEPLOY/pseudo"
+
+	# don't add stuff for the boot partition to the squashfs image
+	mv ${PKGBUILDDIR}/boot/* "$DEPLOY"
+
+	grep -v "^boot/" "$DEPLOY/pseudo" > "$DEPLOY/pseudo.temp"
+	mv "$DEPLOY/pseudo.temp" "$DEPLOY/pseudo"
+	echo "boot m 750 0 0" >> "$DEPLOY/pseudo"
 }
 
 deploy() {