What is a mount point? What do I tell Disk Druid?

A mount point is the place in the directory tree to which a device is grafted. In unix, there are no drive letters - instead, Unix uses a unified directory tree. For a partition to be accessible, the partition must be mounted into this directory tree. The place it gets mounted is known as the mount point.

Redhat's disk druid hard disc partitioning programme needs to know the mount point of each partition it creates, in order to create /etc/fstab later in the install process. You must have at least one partition /, also known as the root volume or root partition (not to be confused with /root, the user root's home directory!)

See the section on disc partitioning on other possible partitioning schemes.