boot/ppc: Cleanup paths, use hfs vs hfsplus

* Move assets to new boot directory
* -hfsplus not valid anymore on cdrtools 3.02
* Throw down some forth I saw in an *old* fedora 12
  chrp script.  If we ever target ppc64 it might be
  handy someday. The text output also lets you know
  the cd booted successfully.

Change-Id: I169d887fe8373de1719b98305d01b714f6f6bcbe
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4681
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Jessica Hamilton <jessica.l.hamilton@gmail.com>

build/jam/ImageRules

@@ -1649,6 +1649,7 @@ rule BuildCDBootPPCImage image : hfsmaps : elfloader : coffloader : chrpscript
 actions BuildCDBootPPCImage1 bind MAPS
 {
 	$(RM) $(<)
+
 	mkdir -p $(HAIKU_OUTPUT_DIR)/cd/ppc
 	mkdir -p $(HAIKU_OUTPUT_DIR)/cd/boot
 	# CHRP Boot script
@@ -1662,9 +1663,10 @@ actions BuildCDBootPPCImage1 bind MAPS
 
 	# Xorriso doesn't have map and some other required tools
 	# to make bootable PowerPC images
-	genisoimage -v -hfsplus -map $(MAPS) \
+	genisoimage -v -hfs -map $(MAPS) \
 		-hfs-bless $(HAIKU_OUTPUT_DIR)/cd/boot -part -no-desktop \
 		-hfs-parms MAX_XTCSIZE=2656248 -hfs-volid Haiku \
+		--prep-boot boot/haikuloader.elf \
 		--chrp-boot -r -J -o $(<) $(HAIKU_OUTPUT_DIR)/cd
 
 	$(RM) -r $(HAIKU_OUTPUT_DIR)/cd

build/jam/images/CDBootImage

@@ -13,7 +13,7 @@ NotFile $(HAIKU_CD_BOOT_IMAGE_CONTAINER_NAME) ;
 
 # common extra files to put on the boot iso
 local extras = README.html ;
-SEARCH on $(extras) = [ FDirName $(HAIKU_TOP) data boot_cd ] ;
+SEARCH on $(extras) = [ FDirName $(HAIKU_TOP) data boot extras ] ;
 
 if $(TARGET_ARCH) = ppc {
 	local elfloader = boot_loader_openfirmware ;
@@ -25,9 +25,6 @@ if $(TARGET_ARCH) = ppc {
 	# HFS creator and application type mapping for mkisofs
 	local hfsmaps = hfs.map ;
 
-	SEARCH on $(chrpscript) $(hfsmaps) $(extras)
-		= [ FDirName $(HAIKU_TOP) data boot_cd ] ;
-
 	BuildCDBootPPCImage $(HAIKU_CD_BOOT_IMAGE) : $(hfsmaps)
 		: $(elfloader) : $(coffloader) : $(chrpscript) : $(extras) ;
 } else {

data/boot/openfirmware/ofboot.chrp

@@ -6,6 +6,18 @@ MacRISC MacRISC3 MacRISC4
 Haiku for PowerPC
 </description>
 <boot-script>
+" screen" output
+load-base release-load-area
+" /cpus/@0" find-package if
+  " 64-bit" rot get-package-property 0= if
+    2drop
+    ." Booting Haiku for PowerPC (64-bit)..."
+    " boot cd:,\\haikuloader.elf" eval
+  else
+    ." Booting Haiku for PowerPC (32-bit)..."
+    " boot cd:,\\haikuloader.elf" eval
+  then
+then
 boot cd:,\\haikuloader.elf
 </boot-script>
 <icon size=64,64 color-space=3,3,2>