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Why are Linux drive numbers skipped when extended partitions are used. This is a bad example of a hard drive but it is clear to what I'm asking....
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- 08-12-2011 #1
Logical drive numbering
Why are Linux drive numbers skipped when extended partitions are used.
This is a bad example of a hard drive but it is clear to what I'm asking.
- 08-13-2011 #2
The limit on the number of primary partitions is 4, and all partitions numbered 1 through 4 are primary partitions. Logical partition numbers start at 5. Any time you see a partition number of 5 or larger, you know it's a logical partition. If the number is 4 or smaller, it's a primary partition.
- 08-13-2011 #3
Thanks for the Reply. I love your helicopter by the way.
I can't find a solid explanation of the (missing drive numbers). I could understand if the first primary drive which is the only primary drive used all of the numbers 1-4 but the extended partition gets number 2. Partitions 3 and 4 are unaccounted for.
- 08-13-2011 #4
It's because an extended partition is, in fact, a primary partition.
In your screenshot, I see sda1. Then there is sda2 as a primary... formated to be extended.
As mentioned above, extended partitions start at 5.
- 08-13-2011 #5
- Join Date
- May 2004
- arch linux
Check the fdisk manual page for more info on partition numbering:
Quoted from the manual page:
The four primary partitions, present or not, get numbers 1-4. Logical partitions start numbering from 5.oz
- 08-13-2011 #6
Thanks for all the Replies!
Thanks for the narrowing it down , five and up logical partition that are part of a extended partition. I have the basics down but am still vague on most of it. Why is it possible to create an extended partition and then make a primary partition within that? What differene does it make other than how the MBR can store the data?
- 08-13-2011 #7Why is it possible to create an extended partition and then make a primary partition within that?
I'm sure that there is a longer, more technical way to explain it, but there ya go
- 08-13-2011 #8
I don't get enough sleep amongst other things.
Gparted will only create a logical partitian within a Extended partition. I will add to this later or repost.
- 08-13-2011 #9
- 08-13-2011 #10Why is it possible to create an extended partition and then make a primary partition within that?