Changes

A progress dialog (shown below) will appear displaying the installation progress and describing each task as it is performed by the installer. The installer will repartition the disk to make space for the Ubuntu Linux distribution, format the Ubuntu partitions, create Linux filesystems on those partitions and then install the Ubuntu Linux packages onto the hard drive.

Depending on the speed of your system this process can take some time. Unless you feel compelled to sit and watch the progress bar now is good time to find something else to do for a while.