diff -ur yaboot-1.3.17-rc1/Makefile yaboot-1.3.17-rc1-debug/Makefile
--- yaboot-1.3.17-rc1/Makefile  2010-08-05 01:04:46.000000000 -0400
+++ yaboot-1.3.17-rc1-debug/Makefile    2011-06-01 02:37:32.954818187 -0400
@@ -4,7 +4,7 @@

 VERSION = 1.3.16
 # Debug mode (spam/verbose)
-DEBUG = 0
+DEBUG = 1
 # make install vars
 ROOT =
 PREFIX = usr/local
diff -ur yaboot-1.3.17-rc1/second/yaboot.c yaboot-1.3.17-rc1-debug/second/yaboot.c
--- yaboot-1.3.17-rc1/second/yaboot.c   2010-08-05 01:04:46.000000000 -0400
+++ yaboot-1.3.17-rc1-debug/second/yaboot.c     2011-06-01 02:16:24.234812132 -0400
@@ -1025,6 +1025,8 @@
          if (!params.kernel.file)
               continue;

+          prom_printf("the paramskernel is %s\n",params.kernel.file);
+
          prom_printf("Please wait, loading kernel...\n");

          memset(&file, 0, sizeof(file));
@@ -1101,7 +1103,12 @@
                    params.rd.file=loc;
               }
               prom_printf("Loading ramdisk...\n");
+               prom_printf("params.rd is %s and %s\n",&params.rd,&file);
+
+               prom_printf("Now begin with open_file \n");
               result = open_file(&params.rd, &file);
+               prom_printf("Now return from open_file\n the rewult is %08x \n",result);
+
               if (result != FILE_ERR_OK) {
                    prom_printf("%s:%d,", params.rd.dev, params.rd.part);
                    prom_perror(result, params.rd.file);
@@ -1115,8 +1122,13 @@
                     */
                    if (file.fs->ino_size && file.fs->ino_size(&file) > 0)
                         len = file.fs->ino_size(&file) + 0x1000;
-
                    initrd_base = prom_claim_chunk(loadinfo.base+loadinfo.memsize, len, 0);
+ prom_printf("file size  is %08x \n", file.fs->ino_size);
+prom_printf("len is %08x \n", len);
+ prom_printf("initrd_base  is %08x \n", initrd_base);
+prom_printf("base address is %08x \n", loadinfo.base+loadinfo.memsize);
+
+                    prom_printf(" Now return from prom_claim_chunk \n");
                    if (initrd_base == (void *)-1) {
                         prom_printf("Claim failed for initrd memory\n");
                         initrd_base = 0;
@@ -1129,6 +1141,7 @@
                         while (initrd_read == len ) { /* need to read more? */
                              initrd_want = (void *)((unsigned long)initrd_more+len);
                              initrd_more = prom_claim(initrd_want, len, 0);
+                              prom_printf(" Now retrun from prom_claim \n");
                              if (initrd_more != initrd_want) {
                                   prom_printf("Claim failed for initrd memory at %p rc=%p\n",initrd_want,initrd_more);
                                   prom_pause();
Only in yaboot-1.3.17-rc1-debug/second: yaboot-debug.patch
Only in yaboot-1.3.17-rc1-debug: yaboot-debug.patch