diff --git a/target/bootdisk/powerpc/boot.msg b/target/bootdisk/powerpc/boot.msg
index ffcb2727f..328ae32f1 100644
--- a/target/bootdisk/powerpc/boot.msg
+++ b/target/bootdisk/powerpc/boot.msg
@@ -5,7 +5,10 @@
             |_| \_\ ___/ \___|_|\_\ |____|_|_| |_|\___/|_/\_|
          [============> http://www.rocklinux.org/ <============]
 
-ROCK Linux on Apple and IBM RS/6k PowerPC was brought to you by Rene Rebe.
+ROCK Linux on Apple, PReP and IBM RS/6k PowerPC was brought to you by
+Rene Rebe - ROCK Linux Consulting (Germany).
+
+  http://www.rocklinux-consulting.de
 
 So you are going to install ROCK Linux ...
 
diff --git a/target/bootdisk/powerpc/build.sh b/target/bootdisk/powerpc/build.sh
index 0110534c4..e6b6bfe28 100644
--- a/target/bootdisk/powerpc/build.sh
+++ b/target/bootdisk/powerpc/build.sh
@@ -36,8 +36,9 @@ then
 	cat > ../isofs_arch.txt <<- EOT
 		BOOT	-hfs -part -map $datdir/mapping -hfs-volid "ROCK_Linux_CD"
 		BOOTx	-hfs-bless boot -sysid PPC
+		BOOTx	-prep-boot boot/yaboot -prep-boot boot/yaboot.rs6k
 		DISK1	$datdir/boot/ boot/
-		SCRIPT	sh $base/target/bootdisk/powerpc/bless-rs6k.sh $disksdir
 	EOT
+#		SCRIPT  sh $base/target/bootdisk/powerpc/bless-rs6k.sh $disksdir
 fi
 
diff --git a/target/bootdisk/sparc/boot.msg b/target/bootdisk/sparc/boot.msg
new file mode 100644
index 000000000..e8dde2477
--- /dev/null
+++ b/target/bootdisk/sparc/boot.msg
@@ -0,0 +1,19 @@
+             ____   ___   ___ _  __  _
+            |  _ \ / _ \ / __| |/ / | |   _ _ __  _   _ _  _
+            | . _/| | | | |  | '_/  | |  |_| '_ \| | | | \/ |
+            | |\ \| |_| | |__| . \  | |__| | | | | `_' |>  <
+            |_| \_\ ___/ \___|_|\_\ |____|_|_| |_|\___/|_/\_|
+         [============> http://www.rocklinux.org/ <============]
+
+ROCK Linux 2.x on SPARC and Ultra SPARC was brought to you by Rene Rebe -
+ROCK Linux Consulting (Germany). Based on former work by Armijn Hemel,
+Jan Veninga and Stefan Koerner!
+
+  http://www.rocklinux-consulting.de
+
+So you are going to install ROCK Linux ...
+
+Possible choices are:
+  install ........... normal CD boot 
+
+.
diff --git a/target/bootdisk/sparc/build.sh b/target/bootdisk/sparc/build.sh
new file mode 100644
index 000000000..8d97da745
--- /dev/null
+++ b/target/bootdisk/sparc/build.sh
@@ -0,0 +1,33 @@
+
+use_silo=1
+
+cd $disksdir
+
+echo_header "Creating cleaning boot directory:"
+rm -rfv boot/*-rock boot/System.map boot/kconfig*
+
+if [ $use_silo -eq 1 ]
+then
+	echo_header "Creating silo setup:"
+	#
+	echo_status "Extracting silo boot loader images."
+	mkdir -p boot
+	tar --use-compress-program=bzip2 \
+	    -xf $base/build/${ROCKCFG_ID}/pkgs/silo.tar.bz2 \
+	    boot/second.b -O > boot/second.b
+	#
+	echo_status "Creating silo config file."
+	cp -v $base/target/$target/sparc/{silo.conf,boot.msg} \
+	  boot
+	#
+	# echo_status "Moving image (initrd) to yaboot directory."
+	# mv -v initrd.img boot/
+	#
+	buildroot="build/${ROCKCFG_ID}/root"
+	cat > ../isofs_arch.txt <<- EOT
+		BOOT	-G $buildroot/boot/isofs.b -B ...
+		DISK1	$datdir/boot/ boot/
+		SCRIPT	sh $base/target/bootdisk/powerpc/bless-rs6k.sh $disksdir
+	EOT
+fi
+
diff --git a/target/bootdisk/sparc/silo.conf b/target/bootdisk/sparc/silo.conf
index 32bc6dbf1..90bc5407e 100644
--- a/target/bootdisk/sparc/silo.conf
+++ b/target/bootdisk/sparc/silo.conf
@@ -1,57 +1,25 @@
 
 partition=1
-default=linux
+default=install
 read-write
 timeout=100
-message=/etc/boot.msg
-image="cat /etc/boot.msg"
-	label=1
-	single-key
-image="cat /etc/general.msg"
-	label=2
-	single-key
-image="cat /etc/expert.msg"
-	label=3
-	single-key
-image="cat /etc/rescue.msg"
-	label=4
-	single-key
-image="cat /etc/kickit.msg"
-	label=5
-	single-key
-image="cat /etc/param.msg"
-	label=6
-	single-key
-image[sun4u]=/boot/vmlinux64.gz
-        label=linux
-        alias=install
-	initrd=/boot/initrd64.img
-image[sun4c,sun4d,sun4m]=/boot/vmlinux32.gz
-        label=linux
-        alias=install
-	initrd=/boot/initrd32.img
-image[sun4u]=/boot/vmlinux64.gz
-        label=text
-        append=text
-	initrd=/boot/initrd64.img
-image[sun4c,sun4d,sun4m]=/boot/vmlinux32.gz
-        label=text
-        append=text
-	initrd=/boot/initrd32.img
-image[sun4u]=/boot/vmlinux64.gz
-        label=expert
-        append=expert
-	initrd=/boot/initrd64.img
-image[sun4c,sun4d,sun4m]=/boot/vmlinux32.gz
-        label=expert
-        append=expert
-	initrd=/boot/initrd32.img
+message=/boot/boot.msg
+
+# ReneR: Add texts here, later ...
+
+#image="cat /etc/boot.msg"
+#	label=1
+#	single-key
+
+# alias
+
 image[sun4u]=/boot/vmlinux64.gz
-        label=ks
-        append=ks
-	initrd=/boot/initrd64.img
-image[sun4c,sun4d,sun4m]=/boot/vmlinux32.gz
-        label=ks
-        append=ks
-	initrd=/boot/initrd32.img
+        label=install
+	alias=linux
+	initrd=/boot/initrd.img
+
+image[sun4c,sun4d,sun4m]=/boot/vmlinux.gz
+        label=install
+	alias=linux
+	initrd=/boot/initrd.img