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x86: split generic image building into a separate script

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33511 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2012-09-22 20:10:35 +00:00
parent ea979190c1
commit e3c123c82b
2 changed files with 40 additions and 36 deletions
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39
target/linux/x86/image/gen_image_generic.sh Executable file
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@ -0,0 +1,39 @@
#!/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 $ALIGN}`
KERNELOFFSET="$(($1 / 512))"
KERNELSIZE="$(($2 / 512))"
ROOTFSOFFSET="$(($3 / 512))"
ROOTFSSIZE="$(($4 / 512))"
BLOCKS="$((($KERNELSIZE / 2) - 1))"
[ -n "$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 "$NOGRUB" ] && exit 0
genext2fs -d "$KERNELDIR" -b "$BLOCKS" "$OUTPUT.kernel"
dd if="$OUTPUT.kernel" of="$OUTPUT" bs=512 seek="$KERNELOFFSET" conv=notrunc
rm -f "$OUTPUT.kernel"

37
target/linux/x86/image/gen_image_grub.sh
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@ -1,41 +1,6 @@
#!/usr/bin/env bash
# Copyright (C) 2006-2010 OpenWrt.org
set -x
[ $# == 5 ] || {
echo "SYNTAX: $0 <file> <kernel size> <kernel directory> <rootfs size> <rootfs image>"
exit 1
}
OUTPUT="$1"
KERNELSIZE="$2"
KERNELDIR="$3"
ROOTFSSIZE="$4"
ROOTFSIMAGE="$5"
rm -f "$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 ${ROOTFSSIZE}m`
KERNELOFFSET="$(($1 / 512))"
KERNELSIZE="$(($2 / 512))"
ROOTFSOFFSET="$(($3 / 512))"
ROOTFSSIZE="$(($4 / 512))"
BLOCKS="$((($KERNELSIZE / 2) - 1))"
[ -n "$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 "$NOGRUB" ] && exit 0
genext2fs -d "$KERNELDIR" -b "$BLOCKS" "$OUTPUT.kernel"
dd if="$OUTPUT.kernel" of="$OUTPUT" bs=512 seek="$KERNELOFFSET" conv=notrunc
rm -f "$OUTPUT.kernel"
. ./gen_image_generic.sh
which chpax >/dev/null && chpax -zp $(which grub)
grub --batch --no-curses --no-floppy --device-map=/dev/null <<EOF