Re: Resizing virtual machine harddrive in RHEL 5

If the virtual hard drive exists as a literal file (i.e. in
/var/lib/xen/images), then you simply shutdown the machine, add bytes
to that file using "dd", and restart it. You'll then have to resize
the partition inside the VM.

Make sure you backup the VM image first, just in case!

Norman

On 1/16/08, Geofrey Rainey <Geofrey.Rainey@xxxxxxxxxx> wrote:
Presumably you would have something like the following in your xen
configuration file for this host:

"Disk = [ 'phy:/dev/sda2, disk_name, w' ]"

I think you would need to build your guest system with the partition
disk_name as a logical volume, ie disk_name
Being a logical volume which one could then resize within the guest
system. I too have thought about
What you are experiencing and to get around it I have had to create a
new partition within the host
and present it to the guest like so:

"Disk = [ 'phy:/dev/sda2, disk_name1, w', 'phy:/dev/sda3, disk_name2, w'
]"

However, perhaps all this can be averted if the disk presented to the
guest is created as a logical
Volume as described above during the guest installation procedure.

Regards,
Geofrey.

-----Original Message-----
From: redhat-list-bounces@xxxxxxxxxx
[mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Ryan Golhar
Sent: Thursday, 17 January 2008 1:12 p.m.
To: General Red Hat Linux discussion list
Subject: Resizing virtual machine harddrive in RHEL 5

Hi,

I'm running a virtual machine using RHEL 5 virtualization. The virtual
machine has a hard drive image create has a file image on the host
machine.

Is it possible to increase the size of the hard drive or must I create
another disk image and mount it as a second hard drive? I would prefer
being able to resize the hard drive to keep the machine as one file but
not sure how I would do this.

Ryan

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