So I have an Ubuntu Machine that is running on my windows seven 64 bit machine. It is using virtual box and I set it for 8 gigs by mistake so I increased the size using the resize function in the command line and now the hdd is set to 30 like it was suppose to be but the internal machine still only sees 8. Is there a way for me to get linux to recognize that there is a bigger HDD now without having to reinstall and such?