Misaligned bytes

Asked by Ray Stewart on 2011-11-26

I am trying to format my 1TB Internal hard drive. Gparted gives me a !message! that says that "The sectors are misaligned by 512kb and it will result in very slow performance. Suggest Repartitioning." I have tried everything I know how to do. Help please!

I have tried formating the entire drive... I have tried partitioning into several parts. I have tried Master Boot Record and GUID..

Question information

Language:
English Edit question
Status:
Answered
For:
Ubuntu gparted Edit question
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Last query:
2011-11-26
Last reply:
2011-11-28

Please start gparted install it if is not installed using software center
- run gparted
- select the internal disk from gparted top right dropdown list
- click on the partition you want to delete and press the top green button "Apply" button
- then right click on empty unallocated space and create a new partition click apply
- then right click on the partition and format it

http://youtu.be/uMW_p_9cAH4

Chris (fabricator4) said : #2

Perhaps there is something odd with the partition table itself. Erase it completely with the following command:

dd if=/dev/zero of=/dev/sdx bs=512 count=1

You will need to replace sdx with the correct device name for your 1Tb drive. Please be careful if there is another drive in the system and be 100% certain you know what you are doing. This command will completely remove the MBR and the partition table from the target drive. If you need more information about the dd command consult the man pages, but the command basically writes zeros to the start of the target hard drive.

Next you will need to recreate the partition table before you can make any partitions. In Gparted I think this is under 'tools' or similar.

Chris

delance (olivier-delance) said : #3

When you create a partition with Gparted, you can ask alignment on 1MB.

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