How to make Cisco Unified Communication Manager bootable ISO from non-bootable image on Linux

Here are the exact steps that help you to make bootable CUCM ISO image from non-bootable ISO image on Linux. If you want to do the same on Windows I strongly recommend to read this tutorial. I could not write my tutorial without reading it first.

Introduction
Typically, non-bootable CUCM images are those available for download on Cisco website. I used Linux Fedora 17 and mkisofs to create bootable CUCM ISO image but feel free to use any Linux distro with genisoimage installed. On Fedora you have to install a package genisoimage to get mkisofs installed.

Used software
Linux Fedora 17 x86-64 with installed genisoimage utility
CUCM 9.1.2 - UCSInstall_UCOS_9.1.2.10000-28.sgn.iso

1. Install genisomage

$ sudo yum install genisomage

Create directory where non-bootable CUCM ISO image will be mounted.

$ mkdir -p ~/temp/extract

2. Create directory where the content of mounted non-bootable ISO image will be copied

$ mkdir -p ~/temp2/

3. Mount non-bootable DVD ISO image

$ sudo mount -t iso9660 ~/Downloads/UCSInstall_UCOS_9.1.2.10000-28.sgn.iso ~/temp/extract

4. Copy the content of mounted ISO image to directory ~/temp2

$ cp -rv ~/temp/extract/ ~/temp2

5.  Create bootable ISO image

cd ~/temp2/extract

mkisofs -o ../UCSInstall_UCOS_9.1.2.10000-28.sgn-bootable.iso -R -no-emul-boot -boot-load-size 32 -boot-info-table -b isolinux/isolinux.bin .

End.

Reference
http://htluo.blogspot.co.uk/2010/04/how-to-make-non-bootable-iso-image.html
http://www.ipcommute.co.uk/technical-articles/17--creating-isolinux-boot-dvds-with-free-software-cucm-uccx-cups.html