Author: blogic
Date: 2014-06-11 14:59:19 +0200 (Wed, 11 Jun 2014)
New Revision: 41121
Added:
trunk/scripts/ubinize-image.sh
Log:
scripts: add ubinize-image.sh to generate ubi images
This is a wrapper for the ubinize tool which integrates auto-generation
of the ubinize.cfg for common volume layouts with and without a kernel
volume.
It supports auto-detecting the rootfs-type and decides whether or not
to include a rootfs_data volume based on whether the rootfs is ubifs
or not (and thus is read-only and needs rootfs_data ubifs overlay).
The script allows to create layouts as found in all current
ubinize{,-overlay}.cfg files using
ubinize-image.sh --no-kernel root.{ubifs,squashfs} output.ubi $UBI_OPTS
It also includes support for adding ubootenv and ubootenv2 volumes
typically used by U-Boot for storing its environment in UBI using the
"--uboot-env" parameter.
See also
https://gitorious.org/openwrt-oxnas/openwrt-oxnas/source/target/linux/
oxnas/image/Makefile
Signed-off-by: Daniel Golle <[email protected]>
create mode 100755 scripts/ubinize-image.sh
Added: trunk/scripts/ubinize-image.sh
===================================================================
--- trunk/scripts/ubinize-image.sh (rev 0)
+++ trunk/scripts/ubinize-image.sh 2014-06-11 12:59:19 UTC (rev 41121)
@@ -0,0 +1,113 @@
+#!/bin/sh
+
+ubootenv=""
+nokernel=""
+ubinize_param=""
+kernel=""
+rootfs=""
+outfile=""
+err=""
+
+get_magic_word() {
+ dd if=$1 bs=2 count=1 2>/dev/null | hexdump -v -n 2 -e '1/1 "%02x"'
+}
+
+is_ubifs() {
+ if [ "$( get_magic_word $1 )" = "3118" ]; then
+ echo "1"
+ fi
+}
+
+ubivol() {
+ volid=$1
+ name=$2
+ image=$3
+ autoresize=$4
+ echo "[$name]"
+ echo "mode=ubi"
+ echo "vol_id=$volid"
+ echo "vol_type=dynamic"
+ echo "vol_name=$name"
+ if [ "$image" ]; then
+ echo "image=$image"
+ else
+ echo "vol_size=1MiB"
+ fi
+ if [ "$autoresize" ]; then
+ echo "vol_flags=autoresize"
+ fi
+}
+
+ubilayout() {
+ local vol_id=0
+ local root_is_ubifs="$( is_ubifs "$2" )"
+ if [ "$1" = "ubootenv" ]; then
+ ubivol $vol_id ubootenv
+ vol_id=$(( $vol_id + 1 ))
+ ubivol $vol_id ubootenv2
+ vol_id=$(( $vol_id + 1 ))
+ fi
+ if [ "$3" ]; then
+ ubivol $vol_id kernel "$3"
+ vol_id=$(( $vol_id + 1 ))
+ fi
+ ubivol $vol_id rootfs "$2" $root_is_ubifs
+ vol_id=$(( $vol_id + 1 ))
+ [ "$root_is_ubifs" ] || ubivol $vol_id rootfs_data "" 1
+}
+
+while [ "$1" ]; do
+ if [ "$1" = "--uboot-env" ]; then
+ ubootenv="ubootenv"
+ shift
+ continue
+ fi
+ if [ "$1" = "--no-kernel" ]; then
+ nokernel="nokernel"
+ shift
+ continue
+ fi
+ if [ ! "$kernel" -a ! "$nokernel" ]; then
+ [ "${1:0:1}" = "-" ] && break
+ kernel=$1
+ shift
+ continue
+ fi
+ if [ ! "$rootfs" ]; then
+ [ "${1:0:1}" = "-" ] && break
+ rootfs=$1
+ shift
+ continue
+ fi
+ if [ ! "$outfile" ]; then
+ [ "${1:0:1}" = "-" ] && break
+ outfile=$1
+ shift
+ continue
+ fi
+ ubinize_param="$@"
+ break
+done
+
+if [ ! -r "$rootfs" -o ! -r "$kernel" -a ! "$nokernel" -o ! "$outfile" ]; then
+ echo "syntax: $0 [--no-kernel] [--uboot-env] rootfs [kernel] out
[ubinize opts]"
+ exit 1
+fi
+
+ubinize="$( which ubinize )"
+if [ ! -x "$ubinize" ]; then
+ echo "ubinize tool not found or not usable"
+ exit 1
+fi
+
+ubinizecfg="$( mktemp )"
+ubilayout "$ubootenv" "$rootfs" "$kernel" > "$ubinizecfg"
+
+cat "$ubinizecfg"
+ubinize -o "$outfile" $ubinize_param "$ubinizecfg"
+err="$?"
+[ ! -e "$outfile" ] && err=2
+rm "$ubinizecfg"
+
+exit $err
+
Property changes on: trunk/scripts/ubinize-image.sh
___________________________________________________________________
Added: svn:executable
## -0,0 +1 ##
+*
\ No newline at end of property
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