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

[Bhasker C V <bhasker@xxxxxxxxxxxxx>]

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

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