1#!/bin/bash
2#
3# Generate a syslinux floppy that loads a gPXE image
4#
5# gensdsk foo.sdsk foo.lkrn
6#
7# the floppy image is the first argument
8#   followed by list of .lkrn images
9#
10
11case $# in
120|1)
13	echo Usage: $0 foo.sdsk foo.lkrn ...
14	exit 1
15	;;
16esac
17case "`mtools -V`" in
18Mtools\ version\ 3.9.9*|Mtools\ version\ 3.9.1[0-9]*|[mM]tools\ *\ [4-9].*)
19	;;
20*)
21	echo Mtools version 3.9.9 or later is required
22	exit 1
23	;;
24esac
25img=$1
26shift
27dir=`mktemp -d bin/sdsk.dir.XXXXXX`
28
29mformat -f 1440 -C -i $img ::
30cfg=$dir/syslinux.cfg
31cat > $cfg <<EOF
32
33# These default options can be changed in the gensdsk script
34TIMEOUT 30
35EOF
36first=
37for f
38do
39	if [ ! -r $f ]
40	then
41		echo $f does not exist, skipping 1>&2
42		continue
43	fi
44	# shorten name for 8.3 filesystem
45	b=$(basename $f)
46	g=${b%.lkrn}
47	g=${g//[^a-z0-9]}
48	g=${g:0:8}.krn
49	case "$first" in
50	"")
51		echo DEFAULT $g
52		;;
53	esac
54	first=$g
55	echo LABEL $b
56	echo "" KERNEL $g
57	mcopy -m -i $img $f ::$g
58done >> $cfg
59mcopy -i $img $cfg ::syslinux.cfg
60if ! syslinux $img
61then
62	exit 1
63fi
64
65rm -fr $dir
66