The next partition is going to be for swap. To ensure that the Suspend feature works properly, it is recommended that the disk space allocated to swap be a little bit more than the amount of RAM installed on the computer. I always like to assign 5000 MB (5 GB). OK.
The third partition to create will be for /, the root file system. The fact that a new installation of Mint 10 takes up less than 3 GB of disk space (about 4.5 when installing from a DVD image) should be give you an idea of how much disk space to allocate to this partition. Try 15 to 20 GB. That should give you plenty of room. Depending on your needs, it might be necessary to create separate partitions for the other major file system directories, like /usr, /tmp, and /var. In that case, the space allocated to the / partition should be much smaller, especially if /usr is on a separate partition.OK.
Note: The first two partitions were primary partitions. This third partition was created as a logical one. If the last partition is also a logical one, you are left with an extra primary partition to use. You do that for insurance purposes.
The last partition will be for /home. The file system type is ext4, the default, and the mount point is, of course, /home. Like the previous one, this partition is also a logical partition. OK.
This is the last image related to disk partitioning that you will see. Double-check your work, and if you are satisfied, click on the Install Now button to continue with the rest of the installation.