--- elwix/config/etc/default/rc.flash	2017/10/13 00:01:12	1.1
+++ elwix/config/etc/default/rc.flash	2021/03/11 13:59:50	1.2
@@ -0,0 +1,83 @@
+#!/bin/sh
+#
+# Update ELWIX OS flash images
+#
+# $Id: rc.flash,v 1.2 2021/03/11 13:59:50 misho Exp $
+
+die() { echo -n "ERROR:: " >&2; echo "$@" >&2; exit 1; }
+
+restoreing()
+{
+	case "$1" in
+		primary|first|main|A|1)
+			CFG_NAND_MAP=`gpart show -p | awk '(NR == 1) { disk = $4; } ($3 == disk"a") { printf("/dev/%s", $3); }'`
+			CFG_NAND_SIZE=`gpart show -p | awk '(NR == 1) { disk = $4; } ($3 == disk"a") { printf("%s", $2 * 512); }'`
+
+			sysctl -w kern.geom.debugflags=16
+			imgupd -is $CFG_NAND_SIZE -f $CFG_NAND_MAP || die "Failed update primary image ..."
+			tunefs -L elwix $CFG_NAND_MAP
+			/etc/rc.cfg boot
+			reboot
+			;;
+		secondary|second|backup|B|2)
+			CFG_NAND_MAP=`gpart show -p | awk '(NR == 1) { disk = $4; } ($3 == disk"f") { printf("/dev/%s", $3); }'`
+			CFG_NAND_SIZE=`gpart show -p | awk '(NR == 1) { disk = $4; } ($3 == disk"f") { printf("%s", $2 * 512); }'`
+
+			imgupd -is $CFG_NAND_SIZE -f $CFG_NAND_MAP || die "Failed update secondary image ..."
+			tunefs -L elwix2 $CFG_NAND_MAP
+			/etc/rc.cfg boot2
+			reboot
+			;;
+		configuration|config|cfg|C|0)
+			CFG_NAND_MAP=`gpart show -p | awk '(NR == 1) { disk = $4; } ($3 == disk"g") { printf("/dev/%s", $3); }'`
+			CFG_NAND_SIZE=`gpart show -p | awk '(NR == 1) { disk = $4; } ($3 == disk"g") { printf("%s", $2 * 512); }'`
+
+			imgupd -is $CFG_NAND_SIZE -f $CFG_NAND_MAP || die "Failed update cfg image ..."
+			reboot
+			;;
+		*)
+			die "Unknown $1 image for restore ..."
+			;;
+	esac
+}
+
+dumping()
+{
+	case "$1" in
+		primary|first|main|A|1)
+			CFG_NAND_MAP=`gpart show -p | awk '(NR == 1) { disk = $4; } ($3 == disk"a") { printf("/dev/%s", $3); }'`
+			CFG_NAND_SIZE=`gpart show -p | awk '(NR == 1) { disk = $4; } ($3 == disk"a") { printf("%s", $2 * 512); }'`
+			;;
+		secondary|second|backup|B|2)
+			CFG_NAND_MAP=`gpart show -p | awk '(NR == 1) { disk = $4; } ($3 == disk"f") { printf("/dev/%s", $3); }'`
+			CFG_NAND_SIZE=`gpart show -p | awk '(NR == 1) { disk = $4; } ($3 == disk"f") { printf("%s", $2 * 512); }'`
+			;;
+		configuration|config|cfg|C|0)
+			CFG_NAND_MAP=`gpart show -p | awk '(NR == 1) { disk = $4; } ($3 == disk"g") { printf("/dev/%s", $3); }'`
+			CFG_NAND_SIZE=`gpart show -p | awk '(NR == 1) { disk = $4; } ($3 == disk"g") { printf("%s", $2 * 512); }'`
+			;;
+		*)
+			die "Unknown $1 image for dump ..."
+			;;
+	esac
+
+	echo imgupd -gs $CFG_NAND_SIZE -f $CFG_NAND_MAP
+}
+
+#
+## main()
+#
+
+case "$1" in
+	dump|get|read|fetch)
+		dumping $2
+		;;
+	restore|put|write|update)
+		restoring $2
+		;;
+	*)
+		echo "/etc/rc.flash <dump|restore> <primary|secondary|config>"
+		echo
+		die "Unknown command $1 ..."
+		;;
+esac