Fedora xen - Jun 2007 - F7 and xenstore

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.

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.
-- 
|=- Red Hat, Engineering, Emerging Technologies, Boston.  +1 978 392 2496 -=|
|=-           Perl modules: http://search.cpan.org/~danberr/              -=|
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Ick. Thanks for your help! 


----- Original Message ----- 
From: "Daniel P. Berrange" <berrange@redhat.com> 
To: "Jim Klein" <jklein@saugus.k12.ca.us> 
Cc: "fedora-xen" <fedora-xen@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. 
-- 
|=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| 
|=- Perl modules: http://search.cpan.org/~danberr/ -=| 
|=- Projects: http://freshmeat.net/~danielpb/ -=| 
|=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|