12.04 - File system is not clean (The partition is misaligned by 1024 bytes)

After trying ubuntu for years and finding it too complicated the latest 12.04 got me intrigued. But after installing the Disk utility is giving me this error. I've searched here and there for a solution but they all seems to complicated for me. Is there a simple answer or do I have to repartition and reinstall all?

Yours sincerely
Kim Hansen, Denmark.

Disk /dev/sda: 500.1 GB, 500107862016 bytes

255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk identifier: 0xaa9693fe

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1            2048    52430847    26214400   1c  Hidden W95 FAT32 (LBA)
/dev/sda2   *    52430848   315301800   131435476+   7  HPFS/NTFS/exFAT
/dev/sda3       315301886   975836294   330267204+   f  W95 Ext'd (LBA)

Partition 3 does not start on physical sector boundary.
/dev/sda5       443142144   975836294   266347075+   7  HPFS/NTFS/exFAT
/dev/sda6       315301888   430755839    57726976   83  Linux
/dev/sda7       430757888   443135999     6189056   82  Linux swap / Solaris

Partition table entries are not in disk order

Disk /dev/sdb: 7948 MB, 7948206080 bytes
81 heads, 10 sectors/track, 19165 cylinders, total 15523840 sectors
Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x06ebddd7

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1            8192    15523839     7757824    7  HPFS/NTFS/exFAT

This article explains this problem.

The problem with misalignment lies with the partition editor. The partition editor that was used during installation defaulted to Rounding off to nearest cylinder. Whereas for newer installers it defaults to Rounding off to nearest MB.

Possible solutions ...

• Back up, repartition, and restore.


• Repartition and reinstall.


• Use GParted to resize/move the partition that has a problem without backup.

Here is the official document on resizing. It is old though and does not include the dropdownbox regating the MiB setting.
Another one without images.