Re: Migrate to XEN and LVM
Gal,
thank you very much for your answer.
On Mon, 16 Apr 2007 14:29:27 +0200, galevsky wrote:
>> 1. Convert the raw partion to LVM
>> How can I do this? It is the root partition of the only installed
>> system on that box.
>
> Well, do you have free space ? If not, the best way would be a fresh
> install, after back-uping your data... If you have, set-up your LVM
> partitions, then move your files from your old partitions to the LVM
> ones, then delete old partitions to enlarge your vg. Don't forget to
> change your /etc/fstab conf file to mount your brand new LVM system
> instead.
> But before going ahead, you must know what is LVM by reading
> http://tldp.org/HOWTO/LVM-HOWTO/
After deleting the old partition is it possible to enlarge the physical
volume or can I only create a new physical volume and add it to the volume
group?
>> 2. Install XEN on a new logical volume.
>
> apt-get will provide you all the required stuff.
>
>> 3. Transfer the old installation into XEN.
>> How can I do this?
>
> Well, wait a minute.... are you aware of... that issue:
> http://www.cl.cam.ac.uk/research/srg/netos/xen/readmes/user/user.html#SECTION01110000000000000000
>
> Xen is cool to handle several kernels running a shared machine. So, if
> your box aims at running only one application mainly, such as a web
> server, or a ftp one, maybe you don't need xen. But if you need two or
> more main applications, it is worth it. You could run two or more user
> domains on your domain0. Do you really need several OS ? To be sure
> before doing extra stuff...
My goal is to add flexibility above all to easily create testing
environments and support future migration processes.
/m
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