I downloaded the virtual box. In it i found a linux installed. When i click on linux and press start. After few second this message appear on the black box, "no bootable medium found. System halted"
I downloaded the virtual box. In it i found a linux installed. When i click on linux and press start. After few second this message appear on the black box, "no bootable medium found. System halted"
I downloaded the virtual box. In it i found a linux installed. When i click on linux and press start. After few second this message appear on the black box, "no bootable medium found. System halted"
Do you mean you downloaded a virtualbox image and imported that into virtualbox, then when you tried to boot the machine you got that error. Am I understanding that correctly? What virtualbox image did you download?
Go to the page where you downloaded your Linux distro.
On that page somewhere it should show a md5sum or an sha1sum that you can check it.
Once you know the md5sum or sha signature you can run it in the terminal to see if the signatures match. IF they don't match your .iso image is corrupt:-