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author | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2006-10-08 15:48:56 +0000 |
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committer | nbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73> | 2006-10-08 15:48:56 +0000 |
commit | 5cd5287c63bd0be72b4ae00fc1af508a2b42e541 (patch) | |
tree | 8bb05e3468ab2c57394f38af4dff7fbd16f82eca /target/image/x86/gen_image.sh | |
parent | a963f60b9b11be446ebe3a77b528ee2513010597 (diff) |
add grub based images for x86-2.6 - still a bit hackish, but works with ext2 and jffs2
git-svn-id: svn://svn.openwrt.org/openwrt/branches/buildroot-ng/openwrt@4962 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/image/x86/gen_image.sh')
-rwxr-xr-x | target/image/x86/gen_image.sh | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/target/image/x86/gen_image.sh b/target/image/x86/gen_image.sh new file mode 100755 index 0000000000..3edce1e406 --- /dev/null +++ b/target/image/x86/gen_image.sh @@ -0,0 +1,60 @@ +#!/bin/sh +# Copyright (C) 2006 OpenWrt.org + +[ $# == 5 ] || { + echo "SYNTAX: $0 <file> <kernel size> <kernel directory> <rootfs size> <rootfs image>" + exit 1 +} + +file="$1" +part1s="$2" +part1d="$3" +part2s="$4" +part2f="$5" + +head=16 +sect=63 +cyl=$(( ($part1s + $part2s) * 1024 * 1024 / ($head * $sect * 512))) + +dd if=/dev/zero of="$file" bs=1M count=$(($part1s + $part2s)) 2>/dev/null || exit +fdisk -u -C $cyl -H $head -S $sect "$file" > /dev/null 2>/dev/null <<EOF +n +p +1 + ++${part1s}M +n +p +2 + ++${part2s}M +w +q +EOF + +block() { + echo -e 'p\nq' | fdisk -u -C $cyl -H $head -S $sect "$file" | awk -v file="$file$1" -v n="$(($2 + 2))" ' +$1 == file { + print $n * 512 +}' +} + +start="$(block 1 0)" +end="$(block 1 1)" +blocks="$(( ($end - $start) / 1024 ))" + +genext2fs -d "$part1d" -b "$blocks" "$file.kernel" +dd if="$file.kernel" of="$file" bs=512 seek="$(($start / 512))" conv=notrunc +rm -f "$file.kernel" + +start="$(block 2 0)" +dd if="$part2f" of="$file" bs=512 seek="$(($start / 512))" conv=notrunc + +which chpax >/dev/null && chpax -zp $(which grub) +grub --device-map=/dev/null <<EOF +device (hd0) $file +geometry (hd0) $cyl $head $sect +root (hd0,0) +setup (hd0) +EOF + |