From 8f9087b8d19d29163a7c8a2cc622a9ae93d6da60 Mon Sep 17 00:00:00 2001
From: Philip Homburg <philip@cs.vu.nl>
Date: Tue, 16 Aug 2005 12:09:20 +0000
Subject: [PATCH] Added support for creating CDs with harddisk emulation

---
 tools/release.sh | 89 ++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 86 insertions(+), 3 deletions(-)

diff --git a/tools/release.sh b/tools/release.sh
index bda71f68e..65e381904 100755
--- a/tools/release.sh
+++ b/tools/release.sh
@@ -1,5 +1,55 @@
 #!/bin/sh
 
+make_hdimage()
+{
+	dd if=$TMPDISK of=usrimage bs=$BS count=$USRBLOCKS
+
+	rootsize=`stat -size rootimage`
+	usrsize=`stat -size usrimage`
+
+	rootsects=`expr $rootsize / 512`
+	usrsects=`expr $usrsize / 512`
+
+	# installboot -m needs at least 1KB 
+	dd < /dev/zero >tmpimage count=2
+	partition -fm tmpimage 2 81:$rootsects* 0:0 81:$usrsects
+	installboot -m tmpimage /usr/mdec/masterboot
+	dd < tmpimage > subpart count=1
+
+	primsects=`expr 1 + $rootsects + $usrsects`
+	cyl=`expr '(' $primsects ')' / 32 / 64 + 1`
+	padsects=`expr $cyl \* 32 \* 64 - 1 - $primsects`
+
+	{ dd < /dev/zero count=1
+		cat subpart
+		cat rootimage
+		cat usrimage
+		dd < /dev/zero count=$padsects
+	} > hdimage
+	partition -m hdimage 81:`expr $primsects + $padsects`*
+	installboot -m hdimage /usr/mdec/masterboot
+}
+
+hdemu_root_changes()
+{
+	$RELEASEDIR/usr/bin/installboot -d $RAM \
+		$RELEASEDIR/usr/mdec/bootblock boot/boot
+	echo \
+'label=BIOS
+bootcd=2
+disable=inet
+bios_remap_first=1
+ramimagedev=c0d7p0s0
+save'	| $RELEASEDIR/usr/bin/edparams $RAM
+
+	echo \
+'root=/dev/c0d7p0s0
+usr=/dev/c0d7p0s2
+usr_roflag="-r"' > $RELEASEDIR/etc/fstab
+}
+
+HDEMU=1
+
 COPYITEMS="usr/bin bin usr/lib"
 RELEASEDIR=/usr/r/release
 IMAGE=cdfdimage
@@ -13,6 +63,21 @@ USRMB=150
 USRBLOCKS="`expr $USRMB \* 1024 \* 1024 / $BS`"
 ROOTMB=2
 ROOTBLOCKS="`expr $ROOTMB \* 1024 \* 1024 / $BS`"
+
+HDEMU=0
+
+while getopts "h?" c
+do
+	case "$c" in
+	\?)
+		echo "Usage: $0 [-h]" >&2
+		exit 1
+	;;
+	h)
+		HDEMU=1
+	esac
+done
+
 echo "Note: this script wants to do cvs operations, so it's necessary"
 echo "to have \$CVSROOT set and cvs login done."
 echo ""
@@ -69,6 +134,9 @@ echo " * Chroot build"
 chroot $RELEASEDIR '/bin/sh -x /usr/src/tools/chrootmake.sh' || exit 1
 echo " * Chroot build done"
 cp issue.install $RELEASEDIR/etc/issue
+
+if [ "$HDEMU" -ne 0 ]; then hdemu_root_changes; fi
+
 umount $TMPDISK || exit
 umount $RAM || exit
 dd if=$RAM of=$ROOTIMAGE bs=$BS count=$ROOTBLOCKS
@@ -78,7 +146,22 @@ make image || exit 1
 sh mkboot cdfdboot
 cp $IMAGE $CDFILES/bootflp.img
 cp release/cd/* $CDFILES
-writeisofs -l MINIX -b $IMAGE $CDFILES $ISO || exit 1
-echo "Appending Minix root and usr filesystem"
-( cat $ISO $ROOTIMAGE ; dd if=$TMPDISK bs=$BS count=$USRBLOCKS ) | gzip -9 >$ISOGZ || exit 1
+
+h_opt=
+bootimage=$IMAGE
+if [ "$HDEMU" -ne 0 ]; then
+	make_hdimage
+	h_opt='-h'
+	bootimage=hdimage
+fi
+writeisofs -l MINIX -b $bootimage $h_opt $CDFILES $ISO || exit 1
+
+if [ "$HDEMU" -eq 0 ]
+then
+	echo "Appending Minix root and usr filesystem"
+	( cat $ISO $ROOTIMAGE ; dd if=$TMPDISK bs=$BS count=$USRBLOCKS ) |
+		gzip -9 >$ISOGZ || exit 1
+else
+	gzip -9 $ISO
+fi
 ls -al $ISOGZ
-- 
2.44.0