From 5f3d5dda81c31485b0991cc1a17fa8b762c81d87 Mon Sep 17 00:00:00 2001
From: Jan Lindemann <jan@jannet.de>
Date: Thu, 29 Jun 2006 06:36:25 +0000
Subject: [PATCH] generate-boot-medium.sh: Add file

---
 scripts/generate-boot-medium.sh | 127 ++++++++++++++++++++++++++++++++
 1 file changed, 127 insertions(+)
 create mode 100644 scripts/generate-boot-medium.sh

diff --git a/scripts/generate-boot-medium.sh b/scripts/generate-boot-medium.sh
new file mode 100644
index 00000000..5d129bec
--- /dev/null
+++ b/scripts/generate-boot-medium.sh
@@ -0,0 +1,127 @@
+#!/bin/sh 
+
+myname=`basename $0`
+cwd=`pwd`
+boot_dir=`mktemp -d "/tmp/$myname""_XXXXXX"`
+
+make_initrd()
+{
+	template=$1
+	modules_dir=$2
+	uname_r=$3
+	target=$4
+
+	dir=`mktemp -d "/tmp/$myname""_XXXXXX"`
+
+	mkdir $dir/source
+
+	cat $1 | (cd $dir/source; gunzip | cpio -i)
+	cp -rp $dir/source $dir/target
+	rm -rf $dir/target/lib/modules/*
+
+	(
+		cd $dir/source
+		find . -name '*.ko'
+	) | while read tmpl_relpath; do
+
+		mod_name=`basename $tmpl_relpath`
+		source_mod=`cd $modules_dir; find . -name $mod_name`
+
+		if [ ! "$source_mod" ]; then
+			echo "warning: module $mod_name not found in $modules_dir" >&2
+		#	exit 1
+		else
+			mod_relpath=`dirname $source_mod`
+			target_path=$dir/target/lib/modules/$uname_r/$mod_relpath
+			echo "copying $mod_name from $mod_relpath to $target_path"
+			mkdir -p $target_path
+			cp $modules_dir/$source_mod $target_path
+			
+		fi
+	done
+
+	(cd $dir/target; find . | cpio -co) | gzip -9 > $target
+
+	rm -rf $dir
+}
+
+config_section()
+{
+	output_file=
+	add_boot_dir=
+	add_modules_basedir=
+	root_dev=
+	initrd_template=
+        sed -n "/\[$2\]/,/\[/ p" $1 | sed '/]/ d; s/#.*//; /./ !d; s/ *= */=/; s/=\(.*\)/="\1"/'
+}
+
+boot_sections()
+{
+	sed '/\[boot\..*\]/ !d; s/\[boot\.//; s/\].*//' $1
+}
+
+
+name_filter()
+{
+	echo $1 | tr [A-Z] [a-z] | sed 's/\.tar\.gz/.tgz/; s/-/_/g; s/\([^.]*\)\.\([^.]*\)$$/\1@\2/; s/\./_/g; s/@/./'
+}
+
+#make_initrd $template $modules_dir
+
+set -- `getopt 'f:o:' $*`
+
+while [ "$1" != -- ]; do
+	case $1 in
+		-f)
+			opt_config_file="$2"
+			shift
+			;;
+		-o)
+			opt_output_file="$2"
+			shift
+			;;
+		*)
+			usage;
+	esac
+	shift
+done
+shift
+
+eval `config_section $opt_config_file global`
+
+echo DEFAULT menu.c32 > $boot_dir/isolinux.cfg
+echo PROMPT 0 >> $boot_dir/isolinux.cfg
+
+for sec in `boot_sections $opt_config_file`; do
+	echo "+ processing section boot.$sec"
+	eval `config_section $opt_config_file boot.$sec`
+	if [ "$add_boot_dir" ]; then
+		echo "+ adding boot directory $add_boot_dir"
+		kernels=`file $add_boot_dir/* | grep -ie 'linux.*kernel' | sed 's/:.*//'`
+		for kernel in $kernels; do
+			kernel_version=`basename $kernel | sed 's/vmlinuz-//'`
+			echo "+ processing kernel $kernel (version $kernel_version)"
+
+			# create initrd
+			if [ "$initrd_template" ]; then
+				echo "+ creating initial ram disk from template $initrd_template"
+				make_initrd $initrd_template $add_modules_basedir/$kernel_version $kernel_version $boot_dir/initrd-$kernel_version
+			fi
+
+			# create isolinux.cfg
+			kernel_version_iso=`name_filter $kernel_version`
+			echo "LABEL $kernel_version" >> $boot_dir/isolinux.cfg
+			echo "KERNEL vmlinuz-$kernel_version_iso" >> $boot_dir/isolinux.cfg
+			echo "APPEND initrd=initrd_$kernel_version_iso root=$root_dev" >> $boot_dir/isolinux.cfg
+		done
+	fi
+done
+
+cp $* $boot_dir
+
+mkisofs -l --iso-level 2 -o $opt_output_file \
+	-b isolinux.bin -c boot.cat \
+	-no-emul-boot -boot-load-size 4 -boot-info-table \
+	$boot_dir
+
+rm -rf $boot_dir