I have installed windows and ubuntu side by side .and given the diskspace of 10GB in an another drive partition.after using two moths i have installed some software to it no it's not starting and writing on the screen that there is no diskspace so could not be started . what can i do now?but at starting time only balckscreen terminal is shown with $ sign . please give me some command to uninstall some program and start using ubuntu or any other way to get rid of it