GRUB and ISO Master

[Andrew Smith]

Hi

I have received a couple of bug reports for ISO Master saying that the 
ISOs it writes aren't bootable. After looking at it for a while I've 
decided the thing that's most likely at fault has something to do with 
GRUB. The CDs are FC-6-i386-livecd-1.iso and NimbleX-2007.iso

Both start to boot but hang. Fedora prints this:

---
Loading stage2 ....
_
---

And NimbleX prints this:

---
Loading stage1.5 .


GRUB loading, please wait...
_
---

Both hang there unresponsive, cursor doesn't blink, the keyboard doesn't 
seem to work at all.

I compared the original ISOs with the edited ones. They are exactly the 
same except for the location of the boot file in the boot info table 
(that's in the stage2_eltorito file) which needs to be changed so that 
the BIOS will find it.

Please help me find the problem. I have no idea what version GRUB is on
either of those but both distros are available online you can take a look:
http://download.fedora.redhat.com/pub/fedora/projects/live/
http://www.nimblex.net/

If you care to see the problem for yourself, please download this 
version of iso master: 
http://littlesvr.ca/isomaster/releases/isomaster-0.8-rc1.tar.bz2

But I'll post any file from there on the web if it may help figure out 
what's wrong.

Thanks in advance, I appreciate your time.