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@ -1,58 +1,39 @@ |
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#!/usr/bin/env bash |
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#!/usr/bin/env bash |
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# Copyright (C) 2006 OpenWrt.org |
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# Copyright (C) 2006 OpenWrt.org |
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set -x |
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[ $# == 5 ] || { |
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[ $# == 5 ] || { |
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echo "SYNTAX: $0 <file> <kernel size> <kernel directory> <rootfs size> <rootfs image>" |
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echo "SYNTAX: $0 <file> <kernel size> <kernel directory> <rootfs size> <rootfs image>" |
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exit 1 |
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exit 1 |
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} |
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} |
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file="$1" |
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OUTPUT="$1" |
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part1s="$2" |
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KERNELSIZE="$2" |
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part1d="$3" |
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KERNELDIR="$3" |
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part2s="$4" |
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ROOTFSSIZE="$4" |
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part2f="$5" |
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ROOTFSIMAGE="$5" |
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rm -f "$OUTPUT" |
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head=16 |
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head=16 |
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sect=63 |
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sect=63 |
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cyl=$(( ($part1s + $part2s) * 1024 * 1024 / ($head * $sect * 512))) |
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cyl=$(( ($KERNELSIZE + $ROOTFSSIZE) * 1024 * 1024 / ($head * $sect * 512))) |
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dd if=/dev/zero of="$file" bs=1M count=$(($part1s + $part2s)) 2>/dev/null || exit |
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fdisk -u -C $cyl -H $head -S $sect "$file" > /dev/null 2>/dev/null <<EOF |
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n |
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p |
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1 |
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+$(($part1s * 1024))K |
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n |
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p |
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2 |
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# create partition table |
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set `ptgen -o "$OUTPUT" -h $head -s $sect -p ${KERNELSIZE}m -p ${ROOTFSSIZE}m` |
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w |
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KERNELOFFSET="$(($1 / 512))" |
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q |
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ROOTFSOFFSET="$(($2 / 512))" |
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EOF |
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block() { |
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echo -e 'p\nq' | fdisk -u -C $cyl -H $head -S $sect "$file" | awk -v file="$file$1" -v n="$(($2 + 2))" ' |
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$1 == file { |
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print $n * 512 |
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}' |
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} |
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start="$(block 1 0)" |
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end="$(block 1 1)" |
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blocks="$(( ($end - $start) / 1024 ))" |
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genext2fs -d "$part1d" -b "$blocks" "$file.kernel" |
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BLOCKS="$((($ROOTFSOFFSET - $KERNELOFFSET) / 2 - 1))" |
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dd if="$file.kernel" of="$file" bs=512 seek="$(($start / 512))" conv=notrunc |
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rm -f "$file.kernel" |
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start="$(block 2 0)" |
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genext2fs -d "$KERNELDIR" -b "$BLOCKS" "$OUTPUT.kernel" |
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dd if="$part2f" of="$file" bs=512 seek="$(($start / 512))" conv=notrunc |
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dd if="$OUTPUT.kernel" of="$OUTPUT" bs=512 seek="$KERNELOFFSET" conv=notrunc |
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dd if="$ROOTFSIMAGE" of="$OUTPUT" bs=512 seek="$ROOTFSOFFSET" conv=notrunc |
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#rm -f "$OUTPUT.kernel" |
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which chpax >/dev/null && chpax -zp $(which grub) |
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which chpax >/dev/null && chpax -zp $(which grub) |
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grub --device-map=/dev/null <<EOF |
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grub --device-map=/dev/null <<EOF |
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device (hd0) $file |
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device (hd0) $OUTPUT |
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geometry (hd0) $cyl $head $sect |
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geometry (hd0) $cyl $head $sect |
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root (hd0,0) |
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root (hd0,0) |
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setup (hd0) |
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setup (hd0) |
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