I tried the flash install using virtualbox a while back . It worked and I made a virtual install of knoppix. Using the same method described in your post, the first partition is windows fat 32, so I would reply 'no' when the flash installer asks to format the partition and to just copy the knoppix files. After the install, will I see a modified opensuse grub menu or will it be modified with a knoppix grub menu (containing all existing entries)?