Disks may have their capacity divided into a few slices. A disk partition is a slice of the disk’s capacity.

  • Partitions are independent of each other and can be managed entirely separately, meaning that in one physical hard drive you can have 1 partition containing Linux and another partition containing Windows.
  • Each partition is formatted with its own file system.

Disk partitioning is the act of creating disk partitions.

  • On Windows you’d use the Disk Management program. On Linux you’d use a utility like GParted, or a CLI like fdisk.

For Linux, it’s common to have:

  • One partition holding system files mounted on /.
  • One for user data on /home.
  • One swap partition.