Partition recognition primary and logical

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After Deeper Search partitions are often displayed as D (deleted). You can change the status of the selected partition using the left/right arrow key. The available statuses are Primary, * bootable, Logical, and Deleted.

Primary Partitions

The first primary partition usually starts at cylinder 0, head 1, sector 1. Additional primary partitions are starting at a non-nul cylinder, head 0, sector 1.
Example:

TestDisk 6.9-WIP, Data Recovery Utility, December 2007
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org

Disk /dev/sdd - 36 GB / 34 GiB - CHS 4492 255 63
      Partition              Start        End    Size in sectors
* HPFS - NTFS              0   1  1  2230 254 63   35840952 [Primary 1]
P HPFS - NTFS           2231   0  1  4491 254 63   36322965 [Primary 2]




Structure: Ok.  Use Up/Down Arrow keys to select partition.
Use LEFT/RIGHT Arrow keys to CHANGE partition characteristics:
*=Primary bootable  P=Primary  L=Logical  E=Extended  D=Deleted
Keys A: add partition, L: load backup, T: change type, P: list files,
     ENTER: to continue
NTFS, 18 GB / 17 GiB

You can have up to one primary bootable partition per disk.

Logical Partitions

A logical partition's start is usually a non-null cylinder, head 1, sector 1.
Example:

TestDisk 6.9-WIP, Data Recovery Utility, December 2007
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org

Disk /dev/sdd - 36 GB / 34 GiB - CHS 4492 255 63
      Partition              Start        End    Size in sectors
L HPFS - NTFS              1   1  1  2230 254 63   35840952 [Logical 1]
L HPFS - NTFS           2231   1  1  4491 254 63   36322965 [Logical 2]




Structure: Ok.  Use Up/Down Arrow keys to select partition.
Use LEFT/RIGHT Arrow keys to CHANGE partition characteristics:
*=Primary bootable  P=Primary  L=Logical  E=Extended  D=Deleted
Keys A: add partition, L: load backup, T: change type, P: list files,
     ENTER: to continue
NTFS, 18 GB / 17 GiB

Partitions created under Vista do not follow this legacy partition scheme.

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