#!/bin/bash
#
# boot-s390-common
#
# Common code for s390 and s390x
#
# (C) 2001 Jochen Röhrig <jr@debian.org>
#     2005 Frans Pop <fjp@debian.org>
#
# Released under the GNU general Public License.
# See the copyright file for license details.
# Released as part of the debian_cd package, not much use stand alone.
#
# Install stuff for booting an s390 system from VM-reader, 
# FTP-server, CD-ROM  or emulated tape.
#
# $1 is the CD number
# $2 is the temporary CD build dir

. $BASEDIR/tools/boot/$CODENAME/common.sh

set -e

N=$1
CDDIR=$2
INSTALLDIR="install"

# Exit if this is not CD#1/DVD#1
if [ $N != "1" ]; then
    add_mkisofs_opt $CDDIR/../$N.mkisofs_opts "-cache-inodes"
    add_mkisofs_opt $CDDIR/../$N.mkisofs_opts "-l"
    exit 0
fi

if [ "$DI_WWW_HOME" = "default" ]; then
    # Tempting as it might be to merge these definitions using $ARCH,
    # do *not* do that - these defs are parsed out by other scripts
    # that won't cope with that
    if [ "$ARCH" = s390x ]; then
        DI_WWW_HOME="https://d-i.debian.org/daily-images/s390x/daily"
    else
        echo "$0: unknown arch $ARCH; abort"
	exit 1
    fi
    try_di_image_cache
else
    DI_WWW_HOME=$(echo $DI_WWW_HOME | sed "s,%ARCH%,$ARCH,")
fi

cd $CDDIR/..

imagedir="boot$N/boot"
mkdir -p $imagedir

# Install the two kernel images, the ramdisk and the parameter file
# The following files need to be included:
# - generic/parmfile.debian    : parameter file
# - generic/initrd.debian      : initrd; to be used for both VM-reader and tape
# - generic/kernel.debian      : kernel for WM-reader
# - tape/kernel.debian         : kernel for tape
# - tape/kernel.debian-nolabel : kernel for tape (nolabel)

images_S390="generic/parmfile.debian generic/initrd.debian generic/kernel.debian"

for image in $images_S390; do
	case $image in
		generic/parmfile.debian)
			imagedest=parmfile ;;
		generic/initrd.debian)
			imagedest=root.bin ;;
		generic/kernel.debian)
			imagedest=linux_vm ;;
	esac
	imagedest="$imagedir/$imagedest"

	if [ -n "$LOCAL"  -a -f "${LOCALDEBS:-$MIRROR}/dists/$DI_DIST/local/installer-$ARCH/current/images/$image" ]; then
		cp "${LOCALDEBS:-$MIRROR}/dists/$DI_DIST/local/installer-$ARCH/current/images/$image" "$imagedest"
	elif [ ! "$DI_WWW_HOME" ];then
		if [ ! "$DI_DIR" ];then
			DI_DIR="$MIRROR/dists/$DI_DIST/main/installer-$ARCH/current/images"
		fi
		cp "$DI_DIR/$image" "$imagedest"
	else
		$WGET "$DI_WWW_HOME/$image" -O "$imagedest"
	fi
done

# Copy the different boot files
# - d390.ins    : for booting from CD-ROM or FTP-Server
# - d390oco.ins : same, using object-code-only-modules-ramdisk (example)
cp $BASEDIR/data/$CODENAME/$ARCH/d390* "$imagedir/"
sed -e 's,^[^*],boot/&,g' < $BASEDIR/data/$CODENAME/$ARCH/d390.ins > "boot$N/d390.ins"

# Create the files specifying offset and size of the initrd
perl -e "print pack('N', 0x1000000)" >"$imagedir/root.off"
perl -e "print pack('N', -s '$imagedir/root.bin')" >"$imagedir/root.siz"

# Copy the README file
cp $BASEDIR/data/$CODENAME/$ARCH/README.boot "boot$N/"

# Include the boot$N/-tree into the iso-image
add_mkisofs_opt $CDDIR/../$N.mkisofs_dirs "boot$N"
