RE: [Xen-users] capture the user made changes ..

["Pallab Chakrabarty" <pchakrabarty@xxxxxxxxxxxxxxx>]

In method 1: using LVM

Shall I have to mention the lvm snapshot disk as XEN storage, take-out the
original lvm & reboot domU..

Can you provide a dummy xen config, may be used in this case?


- regards
   Pallab



-----Original Message-----
From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Bhasker C V
Sent: Wednesday, May 13, 2009 5:26 PM
To: Pallab Chakrabarty
Cc: Xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] capture the user made changes ..


There are many sites where you get information on creating a read-only
root file system


method 1: using LVM

Create an LV (using LVM2/DM)
use this lv to create the root file system.
Once the machine boots fine with the root file system, create an LVM
snapshot volume which will create a disk which will record the changes to
the main volume.

method 2: use qemu qcow images

create a file and use qcow (copy-on-write) which will create another file
to record changes to the file system (block level) and the main file will
be un-affected.


On Wed, 13 May 2009, Pallab Chakrabarty wrote:

>
>  
>
> Hi,
>
>  
>
> I require to make the rootfilesystem readonly, and use a separate disk
space to capture the user made changes once the VM is up &
> running..
>
>  
>
> Thereby, I want to use same rootfilesystem across the VMs..
>
>  
>
>  
>
> Kindly guide me ..
>
>  
>
> - regards
>    Pallab
>
>  
>
>
>

Bhasker C V
Registered linux user #306349

No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.5.325 / Virus Database: 270.12.27/2111 - Release Date: 05/12/09
18:03:00

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users