I am using Toshiba Satellite C660 laptop and I moved from Windows 8.1 to Ubuntu. I may have made some mistake during installation as before installing ubuntu I had 4 partitions but after it, only one partition with the size equals to the size of hard drive. Is it possible to create partitions as this is the only partition as of now. What tools will be required and please provide with the terminal codes that needs to be used.
Thanks in advance.