I've created a virtual machine with Ubuntu (having TinyOS). The problem arises when I start the machine. I immediately get a black screen with written:
GRUB loading. error: invalid arch independent ELF magic grub rescue>
What kind of a problem is it, and more importantly how can I solve it? I tried it on my laptop which has Windows 7 64 bit, and so I also tried it on my Ubuntu partition and also with Ubuntu, once I launch the virtual machine I get the same error!