[Xen-users] LVM

[CS - Ronald Wiplinger <ronald@xxxxxxxxxxxxxx>]

I could not install LVM at the beginning in Ubuntu.
I remember it only let me use LVM if I use it for all, however, I read, 
that you should not use the Xen Dom0 as LVM.
My installation is now:

Filesystem         Size      Used      Avail      Use%      Mounted on
/dev/sda1           4.1G        3.2G        831M    80%        /
/dev/sda2            3 G                                                
   swap
/dev/sda3           226G                                              
   extended
   /dev/sda5        226G     41G        186G    19%        /XenDomains  
/XenDomains/ubuntu.img   
                           20G      2.2G        17G    12%        
/XenDomains/ubuntu
I never used ubuntu (or debian before) and never LVM, forgive me if I 
ask simple things.
Questions:

1. is it possible to convert the /dev/sda5 or /dev/sda3 to LVM?
I know it is used, maybe I need to resize /dev/sda5 first to just 50 G 
and than create a new partition /dev/sda6 for LVM.
2. since I created the ubuntu image with 20 G, but only use 2.2 G. The 
rest of the used partition are CD.images and could be created any time 
again.
Can I first reduce the image to 3 G?

3. Assuming it is possible, I could use than a bigger LVM space of 200 
or even 223 G.
Can I than move the current ubuntu to the LVM?
That would make the space free and I could use this one to add to the 
LVM, since it is empty now.
Any thoughts? and more important HOW can I do that without loosing my 
DomU1 ???
bye

Ronald



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