Im installing ubuntu 16.04 as a duelboot with my windows 7. Im setting the partitions manually because that is recommended. I currently have three partitions, all under the device /dev/sda. The windows partition is dev/sda2. I am installing the ubuntu under dev/sda3. Now, the installer tells me that it needs a swap parition to be most secure.
However, I cannot figure out how to create a new partition. The only time "new partition" is available is when im selecting /dev/sda, but then it gives me a new warning: all old partitions will be removed (including windows?) So i cant create the duel boot without swap, but i cant create a new partition for swap without wiping the windows, defeating the purpose of a duel book. Classic catch 22.
Is there some way i can make a new partition without touching the windows? I suppose i may have to free space by resizing, but i cant find any option to resize anything.