Step 1: check to see if your Ubuntu is 32-bit or 64-bit. You can do this by typing file /sbin/init in terminal. All commands will be in terminal unless otherwise specified (the rest of the commands will be assuming you use a 64-bit system).
Step 1: check to see if your Ubuntu is 32-bit or 64-bit. You can do this by typing file /sbin/init in terminal. All commands will be in terminal unless otherwise specified (the rest of the commands will be assuming you use a 64-bit system).