setup-disk: clean up setup_grub/syslinux

- move extlinux_raidopt to setup_syslinux and pass bootdev instead
- pass kernel_opts to grub config too
- make sure to quote the args to setup_grub/syslinux

setup-disk.in

@@ -199,8 +199,8 @@ has_bootopt() {
 
 # setup grub bootloader
 setup_grub() {
-	local mnt="$1" root="$2" modules="$3"
-	shift 3
+	local mnt="$1" root="$2" modules="$3" kernel_opts="$4"
+	shift 4
 	local disks="${@}"
 
 	for disk in $disks; do
@@ -213,7 +213,7 @@ setup_grub() {
 	cat > "$mnt"/boot/grub/grub.cfg  <<- EOF
 	set timeout=2
 	menuentry "Alpine Linux" {
-		linux   /boot/vmlinuz $modules root=$root
+		linux   /boot/vmlinuz $modules root=$root $kernel_opts
 		initrd  /boot/initramfs-$KERNEL_FLAVOR
 	}
 	EOF
@@ -221,9 +221,8 @@ setup_grub() {
 
 # setup syslinux bootloader
 setup_syslinux() {
-	local mnt="$1" root="$2" modules="$3" extlinux_raidopt="$4"
-	shift 4
-	local kernel_opts="$@"
+	local mnt="$1" root="$2" modules="$3" kernel_opts="$4" bootdev="$5"
+	local exlinux_raidopt=
 
 	sed -e "s:^root=.*:root=$root:" \
 		-e "s:^default_kernel_opts=.*:default_kernel_opts=\"$kernel_opts\":" \
@@ -233,6 +232,13 @@ setup_syslinux() {
 		sed -i -e "s:^default=.*:default=xen-grsec:" \
 			"$mnt"/etc/update-extlinux.conf
 	fi
+
+	# Check if we boot from raid so we can pass proper option to
+	# extlinux later.
+	if [ -e "/sys/block/${bootdev#/dev/}/md" ]; then
+		extlinux_raidopt="--raid"
+	fi
+
 	extlinux $extlinux_raidopt --install "$mnt"/boot
 }
 
@@ -269,12 +275,6 @@ install_mounted_root() {
 	boot_fs=$(find_mount_fs "$mnt_boot")
 	supported_boot_fs "$boot_fs" || return 1
 
-	# Check if we boot from raid so we can pass proper option to
-	# extlinux later.
-	if [ -e "/sys/block/${bootdev#/dev/}/md" ]; then
-		extlinux_raidopt="--raid"
-	fi
-
 	# check if our root is on raid so we can feed mkinitfs and
 	# bootloader conf with the proper kernel module params
 	for dev in $rootdev $pvs; do
@@ -357,8 +357,8 @@ install_mounted_root() {
 	rm -f "$mnt"/var/lib/apk/installed "$mnt"/lib/apk/db/installed
 	echo "Installing system on $rootdev:"
 	case "$ARCH" in
-                ppc64le) setup_grub $mnt $root $modules $disks;;
-                *) setup_syslinux $mnt $root $modules $extlinux_raidopt $kernel_opts;;
+                ppc64le) setup_grub "$mnt" "$root" "$modules" "$kernel_opts" $disks;;
+                *) setup_syslinux "$mnt" "$root" "$modules" "$kernel_opts" "$bootdev";;
         esac
 
 	# apk reads config from target root so we need to copy the config