Can grub detect iso and add them to the list?
 

Hi All :)
Can I put several iso's on a usb and boot from the usb to grub, detect iso's and add them to the list, then select one and boot?
Then I can try different things, make an iso try it on my test machine with out having to make bunches on cds :)

Thanks :)

ISO can't be booted with grub. Also ISO are not supported in the grub.

You might want to install a lightweight distribution on your USB device and VirtualBox on it. Then from VirtualBox, you'll be able to boot ISOs.