[xen-tools] Re: Traffic accouting with xen

[Steve Kemp]

On Sun, Aug 20, 2006 at 08:25:06AM +0530, George Cherian wrote:

>  I have another problem now. How do I dynamically increase the size
> of the disk image? Is this possible? 

  [Any questions like this are probably better suited to the
 Xen lists:
        http://lists.xensource.com/xen-users ]

> That is, I first create say 1Gb disk as root, and then I later 
> want to increase it to 2GB. 

  If you're using LVM to store your images you'd resize them as
 normal for LVM:

        http://www.debian-administration.org/articles/410

  If you're using loopback images to store your disks then you'd
 resize those as you would normally too:

  Use dd to extend the image file to some new size, eg 20Gb:

     >dd if=/dev/zero of=<image-name> bs=1 count=1 seek=20G conv=notrunc

  Check the filesystem for errors:

     >e2fsck -f -y <imagename>

  Resize the filesystem on the volume:

     [ext2 / ext3:]
     >resize2fs <image name>

  (You might use other tools if you want to use a different filesystem
 on your image.)

  In both cases you must shut down the Xen guest first, or you'll
 have corruption.

Steve
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