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Logical Partition

On an x86 system, a sub-partition of an extended partition. Linux systems can typically use extended partitions, whereas Solaris and BSD systems cannot.

Linux uses a sometimes confusing numbering scheme for the primary and logical partitions on a disk. The primary partitions are numbered 1-4 and the logical partitions are numbered starting with 5. A typical disk named /dev/hda, with extended partition 2, broken up into 1000-cylinder partitions, might look like this:

Primary Partition	Logical Partition	Linux name	cylinders	notes
primary 1		/dev/hda1	1-1000	usually windows C:
primary 2		/dev/hda2	1001-5000	don't use
	logical 1	/dev/hda5	1001-2000	often windows D:
	logical 2	/dev/hda6	2001-3000	maybe windows E:
	logical 3	/dev/hda7	3001-4000
	logical 4	/dev/hda8	4001-5000
primary 3		/dev/hda3	5001-6000
primary 4		/dev/hda4	6001-7000

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