Syslinux - Nov 2006 - Problems with syslinux when remastering ubuntu install CD.

Hello!

I am trying to create customized ubuntu install CDs ad described on

  https://help.ubuntu.com/community/InstallCDCustomization

Basically, what I am trying to do is:

  mkdir -p mnt
  sudo mount -oro,loop /downloads/ubuntu-6.10-alternate-i386.iso mnt
  cp -rT mnt custom
  chmod -R u+w custom
  sudo umount mnt
  mkisofs -r -V 'Gemedis Install CD' -cache-inodes -J -l \
      -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot \
      -boot-load-size 4 -boot-info-table -o custom.iso custom
  sudo nice -18 cdrecord blank=fast -eject -v gracetime=2 -tao custom.iso

With this, I get a working CD, thus I think I've got the basics right.
But when I do the slightest modification to the isolinux.cfg, the
generated CD hans even before the boot menu is presented.  For example,
even the following modification will cause the CD to hang:

--- custom/isolinux/isolinux.cfg.orig   2006-11-30 17:21:51.000000000 +0100
+++ custom/isolinux/isolinux.cfg        2006-11-30 17:22:27.000000000 +0100
@@ -3,7 +3,7 @@
 GFXBOOT-BACKGROUND 0xB6875A
 APPEND  file=/cdrom/preseed/ubuntu.seed initrd=/install/initrd.gz
ramdisk_size=16384 root=/dev/ram rw quiet --
 LABEL install
-  menu label ^Install in text mode
+  menu label ^Gem install
   kernel /install/vmlinuz
   append  file=/cdrom/preseed/ubuntu.seed initrd=/install/initrd.gz
ramdisk_size=16384 root=/dev/ram rw quiet --
 LABEL linux

Any ideas what's going wrong here?

BTW: I have tried to find out the meaning of the caret in the "menu
label"
     line. But I could not find any syslinux/isolinux documentation where
     this is described.

Can you post your isolinux.cfg that works and the one that doesn't so we 
can see what you are trying to do?

Regards,


Ryan McLean