To create the first partition, choose the unused space, which should be ada0s3, under Disk/Slice. The mount point should be /boot, and under Type, select UFS+S. The disk space allocated to /boot by the installer when you choose auto-setup with ZFS is 1000 MB. On a new installation of PC-BSD 8.2, /boot consumes about 200 MB of the disk space allocated to it. Save.
The second partition we want to create will be for swap space. Again, under Disk/Slice, select the unused space. Then under Type, choose SWAP. By default, PC-BSD allocates 2000 MB to swap, and that should be more than enough. Save.
As before, select the unused space. Under Type, select ZFS. The screen will change to show the additional ZFS options. The “ZFS Pool Type,” should be as shown. That is the default. Under ZFS File Systems/Mount Points, click on the Add button.
Type in the mount points that you want to use. The defaults are shown in the image. Unless you know exactly what you are doing, it’s better that you use just /, /var, and /usr. Add.
Then click Save to return to the main installation screen.
When all the partitions have been created, the screen should look just like the one below. Click Next to continue with the rest of the installation. Note: It is not necessary to enable “Install PC-BSD bootloader.”