[Fedora-xen] F7 and xenstore

[Jim Klein]

Ick. Thanks for your help! 


----- Original Message ----- 
From: "Daniel P. Berrange" <berrange at redhat.com> 
To: "Jim Klein" <jklein at saugus.k12.ca.us> 
Cc: "fedora-xen" <fedora-xen at redhat.com> 
Sent: Friday, June 1, 2007 2:30:24 PM (GMT-0800) America/Los_Angeles 
Subject: Re: [Fedora-xen] F7 and xenstore 

On Fri, Jun 01, 2007 at 02:20:00PM -0700, Jim Klein wrote: 
> Is all the configuration for domu's now in xenstore? If so, then is 
> there an easier way to manage it than the xenstore commands? 
> /var/lib/xend/domains appears to contain config files, listed by uuid, 
> but changes are ignored. What are the steps to edit a domain's 
> configuration? Thanks in advance. 

No, they're no kept in xenstore. The /var/lib/xend/domains directory is 
the location XenD uses for persistent storage of guest domain configs. 
It is in /var because it is not user editable - changes you make there 
will be ignored and/or overwritten by XenD at will. Not ideal, but that's 
just what upstream Xen decided to do... 

Thus we recommend using libvirt's virsh command for changing the config 

1. Get dump of the existing config 

virsh dumpxml [guest name] > guest.xml 

2. Edit it in vi/emacs 

vi guest.xml 

3. Feed it back into Xend 

virsh define guest.xml 

For a description of various XML elements/attributes that are allowed 
in the config there is: 

http://libvirt.org/format.html 

Or if you are really feeling adventurous a Relax-NG schema 

http://libvirt.org/libvirt.rng 


Finally, virt-manager has some slightly increased capabilities for changing 
existing guests configs. You can use it to add/remove both disk and network 
devices - as well as previous UI for memory/max-memory & vcpus 

Regards, 
Dan. 
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