[ubuntu] Multi OS install disk

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http://ubuntuforums.org – I have an install disk by Sardu containing 4 OS. When I boot up, regardless of whish OS I choose I get the error message Unable to find a medium containing a live file system. Is this referring to the install disk? Or to my HD. When I run the hardware detection tool on the disk , it detects everything in my computer. Anyone else experienced something like this? Thank you. (Hardware)