omap: rework image generation and profiles

[openwrt/staging/lynxis/omap.git] / target / linux / omap / image / gen_omap_sdcard_img.sh

diff --git a/target/linux/omap/image/gen_omap_sdcard_img.sh b/target/linux/omap/image/gen_omap_sdcard_img.sh
new file mode 100755 (executable)
index 0000000..c2f2aad
--- /dev/null
+++ b/target/linux/omap/image/gen_omap_sdcard_img.sh
@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+
+#
+# Copyright (C) 2013 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+set -x
+[ $# -eq 5 ] || {
+    echo "SYNTAX: $0 <file> <bootfs image> <rootfs image> <bootfs size> <rootfs size>"
+    exit 1
+}
+
+OUTPUT="$1"
+BOOTFS="$2"
+ROOTFS="$3"
+BOOTFSSIZE="$4"
+ROOTFSSIZE="$5"
+
+head=4
+sect=63
+
+set `ptgen -o $OUTPUT -h $head -s $sect -l 1024 -t c -p ${BOOTFSSIZE}M -t 83 -p ${ROOTFSSIZE}M`
+
+BOOTOFFSET="$(($1 / 512))"
+BOOTSIZE="$(($2 / 512))"
+ROOTFSOFFSET="$(($3 / 512))"
+ROOTFSSIZE="$(($4 / 512))"
+
+dd bs=512 if="$BOOTFS" of="$OUTPUT" seek="$BOOTOFFSET" conv=notrunc
+dd bs=512 if="$ROOTFS" of="$OUTPUT" seek="$ROOTFSOFFSET" conv=notrunc