![]() Insert your Linux CD into your computer's CD drive and plug in your USB flash drive. Download an ISO builder. MagicISO is an excellent free option, though its functionality is relatively limited. For those who want more functionality, Nero is a good option, though it is not free. ![]() For whatever reason, Cisco only post 'non-bootable' ISO images on CCO for download. In some urgent situations, you might need a bootable disc to recover the system (or your client/boss would shoot you in the head). Here's the procedure to make a non-bootable ISO image bootable. Before you continue, be aware that this procedure is NOT approved by Cisco. Neither Cisco nor I will be responsible for any loss caused by this. Any bootable disc has to follow ' specification. No exception for Cisco discs. You may save the boot sector on your USB thumb drive and keep it handy. To extract/inject the boot sector, you need some disc image tools like. (You may also use other ISO tools with similar features) Step 1: Get the boot file There are two ways to get a boot file - extract from the DVD's file system (regardless bootable or not) or extract from a bootable DVD's boot sector. Option 1: Extract from DVD's file system (regardless bootable or not) This option is preferred as you don't have to find another bootable disc or ISO file. The boot file should be available on any CUCM DVD, regardless bootable or not. It is located in the 'isolinux' folder. File name is isolinux.bin. Extract and save the isolinux.bin file to your hard drive. We'll need to use that later. Option 2: Extract the boot sector from a bootable DVD If for some reason, you were not able to find/extract the isolinux.bin file, you may extract the boot file from a bootable disc (or ISO image). Put a bootable CUCM disc into the DVD drive and launch UltraISO. Go to menu 'Bootable > Extract Boot File from CD/DVD.' Save the file to your hard drive as a 'boot info file' (bif). In our example, we call it 'boot.bif' Step 2: Inject the boot file Open the non-bootable image in UltraISO. Go to menu 'Bootable'. Make sure ' Generate Bootinfotable' was checked (it will NOT work without this option). Then choose 'Load Boot File.' Choose the boot file we saved before (isolinux.bin or boot.bif). Note that the image type changed to 'Bootable'. Now, you may go to 'File > Save As' to save the bootable image to an ISO file. Then you may burn the ISO to a disc with your favorite disc burner software.
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