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 <daniel@makrotopia.org> create mode 100755 scripts/ubinize-image.sh SVN-Revision: 41121master
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#!/bin/sh |
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ubootenv="" |
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nokernel="" |
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ubinize_param="" |
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kernel="" |
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rootfs="" |
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outfile="" |
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err="" |
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get_magic_word() { |
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dd if=$1 bs=2 count=1 2>/dev/null | hexdump -v -n 2 -e '1/1 "%02x"' |
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} |
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is_ubifs() { |
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if [ "$( get_magic_word $1 )" = "3118" ]; then |
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echo "1" |
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fi |
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} |
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ubivol() { |
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volid=$1 |
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name=$2 |
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image=$3 |
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autoresize=$4 |
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echo "[$name]" |
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echo "mode=ubi" |
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echo "vol_id=$volid" |
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echo "vol_type=dynamic" |
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echo "vol_name=$name" |
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if [ "$image" ]; then |
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echo "image=$image" |
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else |
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echo "vol_size=1MiB" |
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fi |
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if [ "$autoresize" ]; then |
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echo "vol_flags=autoresize" |
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fi |
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} |
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ubilayout() { |
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local vol_id=0 |
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local root_is_ubifs="$( is_ubifs "$2" )" |
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if [ "$1" = "ubootenv" ]; then |
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ubivol $vol_id ubootenv |
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vol_id=$(( $vol_id + 1 )) |
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ubivol $vol_id ubootenv2 |
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vol_id=$(( $vol_id + 1 )) |
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fi |
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if [ "$3" ]; then |
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ubivol $vol_id kernel "$3" |
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vol_id=$(( $vol_id + 1 )) |
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fi |
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ubivol $vol_id rootfs "$2" $root_is_ubifs |
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vol_id=$(( $vol_id + 1 )) |
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[ "$root_is_ubifs" ] || ubivol $vol_id rootfs_data "" 1 |
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} |
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while [ "$1" ]; do |
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if [ "$1" = "--uboot-env" ]; then |
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ubootenv="ubootenv" |
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shift |
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continue |
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fi |
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if [ "$1" = "--no-kernel" ]; then |
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nokernel="nokernel" |
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shift |
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continue |
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fi |
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if [ ! "$kernel" -a ! "$nokernel" ]; then |
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[ "${1:0:1}" = "-" ] && break |
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kernel=$1 |
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shift |
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continue |
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fi |
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if [ ! "$rootfs" ]; then |
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[ "${1:0:1}" = "-" ] && break |
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rootfs=$1 |
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shift |
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continue |
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fi |
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if [ ! "$outfile" ]; then |
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[ "${1:0:1}" = "-" ] && break |
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outfile=$1 |
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shift |
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continue |
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fi |
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ubinize_param="$@" |
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break |
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done |
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if [ ! -r "$rootfs" -o ! -r "$kernel" -a ! "$nokernel" -o ! "$outfile" ]; then |
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echo "syntax: $0 [--no-kernel] [--uboot-env] rootfs [kernel] out [ubinize opts]" |
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exit 1 |
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fi |
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ubinize="$( which ubinize )" |
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if [ ! -x "$ubinize" ]; then |
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echo "ubinize tool not found or not usable" |
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exit 1 |
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fi |
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ubinizecfg="$( mktemp )" |
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ubilayout "$ubootenv" "$rootfs" "$kernel" > "$ubinizecfg" |
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cat "$ubinizecfg" |
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ubinize -o "$outfile" $ubinize_param "$ubinizecfg" |
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err="$?" |
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[ ! -e "$outfile" ] && err=2 |
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rm "$ubinizecfg" |
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exit $err |
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