Saturday, October 27, 2018

boot - How to make a bootable ISO file from a LiveOS USB?

I've been trying to convert a bootable live OS 'multiboot' USB to ISO for burning to DVD.



The USB boots fine and was made using multibootUSB - which has a bootloader with options to load various different Live OS - all work fine



Have tried to create an IMG file (which mounts fine with Ubuntu Disk Image mounter) but converting to an ISO:




mkisofs -o  


results in an ISO that reports




boot failed could not read from cdrom
boot failed could not read the boot disk
no bootable device





all this tested using QEMU and also Virtualbox



Anyone know how to create a bootable ISO file that will work...? Thanks

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