Dears,

I had replace a larger HDD from 320GB to 500GB for my CentOS 6.4 x64

After replace, i want to extend sda2 to 80GB because it's already full. But when i use parted to create new partition, it have the below error, it still only can use 320GB.

May i know any step i goes wrong? Many Thanks!


(parted) print
Model: ATA WDC WD5000AAKX-0 (scsi)
Disk /dev/sda: 500GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos

Number Start End Size Type File system Flags
1 1049kB 1075MB 1074MB primary ext4 boot
2 1075MB 22.5GB 21.5GB primary ext4
3 22.5GB 26.8GB 4295MB primary linux-swap(v1)
4 26.8GB 320GB 293GB extended
5 26.8GB 320GB 293GB logical ext4

(parted) mkpart
Partition type? [logical]? primery
parted: invalid token: primery
Partition type? [logical]? extended
parted: invalid token: extended
Partition type? [logical]?
File system type? [ext2]? ext4
Start? 320GB
End? 380GB
Warning: You requested a partition from 320GB to 380GB.
The closest location we can manage is 320GB to 320GB.
Is this still acceptable to you?
Yes/No? n

How did you replace the hard drive?

What method did you use to restore the disk and data?

Welcome to LinuxQuestions.

To create additional partitions you have to increase the size of the extended partition i.e sda4. However, to increase the size of sda2 you need to move the sda3 and sda4 (which contains sda5) to the right.

Make sure you backup all important data and I assume that sda2 is your / so running gparted from a live CD or USB is required.

What lazydog said. Plus this.

I've not used CentOS, but I doubt that is a problem here. When I want to move an OS to a different HDD, I will:
1. boot SystemRescueCD and use Gparted to get the sizes/types (as in how they are formatted) of the partitions. Though fdisk will give you a more accurate number. This is also for safety in case nothing works, at least you can bring it back to what you had. Hopefully, but no guarentees.
2. After writing down all these exact numbers, I can set the other HDD up with the new partition info.
3. Again, for safety, I make a back of the MBR w/
4. Now you can partition/format the "new" HDD with the new sizes you need.
5. Then I use partimage to backup the original partition(s) to a 3rd HDD or an extra partition on one of the 2 HDDs you have (wherever you have space available).
6. And finally, you use partimage to restore from wherever you backed up to, to the "new" partitions. Note that you need to start partimage w/the parameter that causes it to not store the MBR. I'm in Windows now, so I don't remember, but the man page will tell you. When I say you need to start it w/that parameter, I mean on backup and restore.

I'd boot to a live something and use gparted instead. You might see why it can't do what you want.

Thanks All.

I use dd to copy data from 320GB HDD to 500GB HDD. May i know the dd command which can increase the partition size to the new HDD?

Thanks!

What was the exact command you used to copy your data?

You have 'imaged' an exact copy of your 320GB drive onto your 500GB drive.
You may be able to use fdisk to create a partition in the extra space.

i use "dd if=/dev/sda of=/dev/sdb bs=100M conv=notrunc"

dd can't do that.

As suggested get a gparted liveCD and use that to move the partitions around - it has a GUI visualisation of the disk that is quite good. You will have to move all the partitions sda[345] to create free space immediately adjacent to sda2 - then you can increase its size (also with gparted).
Not trivial, but easy enough if you are careful.