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the disk tool points out that the partition is misaligned by 512 Bytes. The Ubuntu system is my secondary to win xp sp3,and the partition mentioned is the ubuntu`s partition with ntfs file sys. Questions:1.Should I fix it? if y how? 2.Can it mess some win handling of this particular partition if changed by linux? Thanks

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Your Ubuntu partition with NTFS?, did you installed Ubuntu on a NTFS partition? or is it a shared NTFS partition for Ubuntu and XP?. – Uri Herrera Dec 31 '12 at 18:03
One of the questions here should help you: partition misaligned – Uri Herrera Dec 31 '12 at 18:04
I installed Ubuntu on NTFS a logical partition – E.peer Jan 1 '13 at 5:11

Show the output of sudo parted /dev/sda unit s print (or change /dev/sda to whatever's relevant). Also, what model disk do you have? If it's an older one (made in 2009 or earlier, before Advanced Format became common), it's not an issue; but if it's a newer disk, partition alignment to 8-sector boundaries is important. Chances are you're seeing a bug that causes the program to overreact to certain conditions, but there could be a real problem.

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