From a576ed5437b00e0984712c6f38f8c11b0ed15b48 Mon Sep 17 00:00:00 2001
From: Stijn Tintel <stijn@linux-ipv6.be>
Date: Tue, 11 Jul 2017 02:49:34 +0200
Subject: scripts/gen_image_generic.sh: move from x86/image

The script can also be useful for other targets.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
---
 scripts/gen_image_generic.sh | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)
 create mode 100755 scripts/gen_image_generic.sh

(limited to 'scripts')

diff --git a/scripts/gen_image_generic.sh b/scripts/gen_image_generic.sh
new file mode 100755
index 0000000000..17d969b96b
--- /dev/null
+++ b/scripts/gen_image_generic.sh
@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+# Copyright (C) 2006-2012 OpenWrt.org
+set -x
+[ $# == 5 -o $# == 6 ] || {
+    echo "SYNTAX: $0 <file> <kernel size> <kernel directory> <rootfs size> <rootfs image> [<align>]"
+    exit 1
+}
+
+OUTPUT="$1"
+KERNELSIZE="$2"
+KERNELDIR="$3"
+ROOTFSSIZE="$4"
+ROOTFSIMAGE="$5"
+ALIGN="$6"
+
+rm -f "$OUTPUT"
+
+head=16
+sect=63
+cyl=$(( ($KERNELSIZE + $ROOTFSSIZE) * 1024 * 1024 / ($head * $sect * 512)))
+
+# create partition table
+set `ptgen -o "$OUTPUT" -h $head -s $sect -p ${KERNELSIZE}m -p ${ROOTFSSIZE}m ${ALIGN:+-l $ALIGN} ${SIGNATURE:+-S 0x$SIGNATURE}`
+
+KERNELOFFSET="$(($1 / 512))"
+KERNELSIZE="$2"
+ROOTFSOFFSET="$(($3 / 512))"
+ROOTFSSIZE="$(($4 / 512))"
+
+[ -n "$PADDING" ] && dd if=/dev/zero of="$OUTPUT" bs=512 seek="$ROOTFSOFFSET" conv=notrunc count="$ROOTFSSIZE"
+dd if="$ROOTFSIMAGE" of="$OUTPUT" bs=512 seek="$ROOTFSOFFSET" conv=notrunc
+
+[ -n "$NOGRUB" ] && exit 0
+
+make_ext4fs -J -l "$KERNELSIZE" "$OUTPUT.kernel" "$KERNELDIR"
+dd if="$OUTPUT.kernel" of="$OUTPUT" bs=512 seek="$KERNELOFFSET" conv=notrunc
+rm -f "$OUTPUT.kernel"
-- 
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