Partition problems

Rick Stevens ricks at nerd.com
Wed Nov 18 00:29:37 UTC 2009


On 11/17/2009 04:04 PM, Jim wrote:
> FC11/Mint
>
> I have a fdisk output that is showing a cylinder overlap , how would I
> fix this problem ?
>
> How can you tell using fdisk which partitions are / ?
>
> These partition are for Fedora and Mint a Dual boot

(copied from original message)
    Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          26      204800   83  Linux
Partition 1 does not end on cylinder boundary.
/dev/sda2              26       15325   122887168   83  Linux
(end copy)

I don't like the overlap on cylinder 26, but it's not fatal.

(more copied stuff)
/dev/sda4           24249       38913   117796612+   5  Extended
/dev/sda5           24249       24379     1048576   82  Linux swap /
(end copy)

If you're worried about the overlap between /dev/sda4 and /dev/sda5,
don't.  /dev/sda4 is the "extended" partition and all the others are
inside of it, so sda5 will have the same starting cylinder as sda4.

You can only have four primary partitions.  If you need more than four
partitions, then one of those primaries becomes an "extended" partition
and partitions 5 through "n" go inside it.
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