How to create a bootable installation DVD ?


I create a new opensuse 11.1 installation DVD image using the makeSUSEdvd tool.
It’s the tool that allows you to combine all suse CD’s into one DVD but it can also be used to create a new DVD with additional RPM files in the iso.

I downloaded the Packman repo and added those RPM’s to the ISO file.

The tool makeSUSEdvd reads the original DVD ISO, adds the additional RPM’s and ceates new file lists etc.

In the end it creates a new ISO file with the additional packages, ready to burn on DVD and install.

The only problem is that it does not create a bootable ISO file. The result is a perfectly working ISO that van be burned on DVD but it does not boot.

So my question is, what do I have to do to make the existing new DVD bootable ?
I know it can be done somehow with mkisofs but I’m not sure how ?

Anyone ?