Converting Non-Bootable iso to Bootable iso


1. Download and install latest UltraISO from
2. Download latest CUCM for example UCSInstall_UCOS_10.5.2.12901-1.sgn.iso from Cisco
3. Open UltraISO
click menu File/Open and open  UCSInstall_UCOS_10.5.2.12901-1.sgn.iso
extract /isolinux/isolinux.bin into desktop
click menu Bootable/Generate Bootinfotable
click menu Bootable/Load Boot File and open isolinux.bin in the desktop
click File/Save As/Bootable_UCSInstall_UCOS_10.5.2.12901-1.sgn.iso

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