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[Sylvain Bauza <sylvain.bauza@xxxxxxxxxxxx>]

If you look at 
http://www.pixelbeat.org/docs/openstack_libvirt_images/#1361764412, 
you'll see that resize2fs is performed. But there is a caveat with RHEL6 
which is Linux 2.6 (contrary to Ubuntu 12.04 which is Linux 3.0).
If you look at "man resize2fs" :

       The resize2fs program will resize ext2, ext3, or ext4 file 
systems.  It
       can  be  used  to enlarge or shrink an unmounted file system 
located on
       device.  If the filesystem is mounted, it can be  used  to 
expand  the
       size  of  the  mounted filesystem, assuming the kernel supports 
on-line
       resizing.  (As of this writing, the Linux 2.6 kernel supports  
on-line
       resize for filesystems mounted using ext3 only.).

You absolutely need to create ext3 root partition for that working.

-Sylvain

Le 05/03/2013 05:59, Lei Zhang a écrit :
> Hi all,
>
> I am making the RHEL Image for the Openstack. But what type of 
> partition layout is preferred?
> The question is that when resize the image, the FS can be aware of the 
> expansion and enlarge automatically. I found the ubuntu image from the 
> http://cloud-images.ubuntu.com/precise/ have this feature. But the 
> image I create can not.
> So how to make the image created can re-partitioned in resize process 
> automatically and how the re-partitioned implemented?
>
> --
> Lei Zhang
>
> Blog: http://jeffrey4l.github.com
> twitter/weibo: @jeffrey4l
>
>
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