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(Image: Screenshot by JA Watson/ZDNet)
Disk layout selection
This is the first step in determining the disk partitioning. If your computer only has Windows installed, and you want ubiquity to shrink the Windows C: partition to make room to install Ubuntu, all you have to do here is leave it on the default "Install alongside them". But my system has a bunch of other stuff on it already, so I chose "Something else", which will take me to a partitioner where I can do exactly what I want. Of course, I could have also chosen to have ubiquity wipe the disk clean and install Ubuntu alone...