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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