Quote:
Drive partition 101:
You can create 4 primary partitions. However you can have up to 16 total partitions. To create additional partitions one of the primaries is an extended partitions and then you create a logical partition. In simple terms an extended partitions is a container for logicals.
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You can have up to 63 total usable partitions; 3 primary & 60 logical. This is for IDE only.
For SCSI the limit on partitions is 15.
Examples:
Primary partitions only. Note only 4 are allowed.
hda: Primary master ide device
|-hda1: primary partition 1
|-hda2: primary partition 2
|-hda3: primary partition 3
\-hda4: primary partition 4
Logical partitons being used to get around 4 primary partition limit:
hda: Primary master ide device
|-hda1: primary partition 1
|-hda2: Once primary, now extended, carrying logical partitions
| |-hda5: Logical partition 1
| |-hda6: Logical partition 2
| \-Upto 60 logical ones if you want.
|-hda3: primary partition 3
\-hda4: primary partition 4
See the Partition Howto for more info:
http://www.tldp.org/HOWTO/Partition/index.html