afaik, there's no way to do this 'in place'. 
you'd need to boot into rescue mode, create the new XFS partition, copy the
data across , then make the new partition live.
----- Original Message -----
From: "Karthick K" <karthick.k11 at gmail.com> 
To: centos-virt at centos.org 
Sent: Thursday, 28 June, 2012 1:47:26 PM 
Subject: [CentOS-virt] Convert EXT3/EXT4 to XFS 
Hi Folks, 
Can you guide me about how to convert the CentOS file system from EXT3/EXT4 to
XFS without loosing data? I have tried search in google about this but I
couldn't get the relevant idea.
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