mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-30 18:47:06 +00:00
46 lines
1.1 KiB
Bash
46 lines
1.1 KiB
Bash
|
#!/usr/bin/env bash
|
||
|
|
# Copyright (C) 2006 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 ${ROOTFSSIZE}m`
|
||
|
|
|
||
|
|
KERNELOFFSET="$(($1 / 512))"
|
||
|
|
KERNELSIZE="$(($2 / 512))"
|
||
|
|
ROOTFSOFFSET="$(($3 / 512))"
|
||
|
|
ROOTFSSIZE="$(($4 / 512))"
|
||
|
|
|
||
|
|
BLOCKS="$((($KERNELSIZE / 2) - 1))"
|
||
|
|
|
||
|
|
genext2fs -d "$KERNELDIR" -b "$BLOCKS" "$OUTPUT.kernel"
|
||
|
|
dd if="$OUTPUT.kernel" of="$OUTPUT" bs=512 seek="$KERNELOFFSET" conv=notrunc
|
||
|
|
[ -n "$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
|
||
|
|
#rm -f "$OUTPUT.kernel"
|
||
|
|
|
||
|
|
which chpax >/dev/null && chpax -zp $(which grub)
|
||
|
|
grub --batch --no-curses --no-floppy --device-map=/dev/null <<EOF
|
||
|
|
device (hd0) $OUTPUT
|
||
|
|
geometry (hd0) $cyl $head $sect
|
||
|
|
root (hd0,0)
|
||
|
|
setup (hd0)
|
||
|
|
quit
|
||
|
|
EOF
|
||
|
|
|