Re: [Xen-users] config.sxp pain - auto start?

[Brian Krusic <brian@xxxxxxxxxx>]

Cool post James, glad I'm not the only one.

Eagerly awaiting feedback.

- Brian

On Oct 9, 2009, at 12:22 PM, James Pifer wrote:

> On Thu, 2009-10-08 at 11:37 -0700, Brian Krusic wrote:
> > Hi all,
> >
> > In the older format using Xen 3.0.3 (domains created via xm), I  
> > simply
> > created a sym link from /etc/xen/domU config file to /etc/xen/auto.
> >
> > I am now using virt-install (Xen 3.4.1) which creates the domU config
> > in /var/lib/xend/domains/UUID_#_of_domU/config.sxp.
> >
> > So I sym link this to a file in /etc/xen/auto/hostname_of_domU and
> > noticed that no auto starting of the domU happens.
> >
> > I've looked in both my Xen books and only find that /etc/xen/auto is
> > the place to auto start domUs.
> >
> > Any ideas on how to auto start gracefully while not writing a script
> > in /etc/rc3.d every time a new domU comes on line?
> >
> > And why are xm create and virt-install so diff in how they approach
> > domU configs?  This is confusing.
> >
> > - Brian
> I've read through this thread. Is there a consensus here? When I first
> started on xen it used the files in /etc/xen/vm for configs, and to
> autostart on boot you would put a softlink under /etc/xen/auto.
>
> With newer versions (I'm on 3.2.x) I'm using xenstore, but I don't  
> like
> the process.
>
> 1) I create a new domU with virt-manager
> 2) I then shutdown the domU
> 3) save a conf of the domU: xm list -l  [domU name] > [domU name].conf
> 4) edit this conf file for the start and stop lines
> 5) remove the domU from virt-manager
> 6) reinstall it with: xm new -F [domU name].conf
>
> I really don't like this process at all and it doesn't work 100% of  
> the
> time for setting a domU to auto start. Plus, with it set this way I
> can't restart xend without hosing the running domUs. I think if I  
> change
> the stop to ignore it would help. Drawback is I'd have to manually
> shutdown all the domU's before restarting the server.
>
> Right now I have memory issues on two of my servers. I need to reboot
> both servers, which affects roughly 20 domU's, both linux pv's and
> windows hvm's. I don't know for sure, but it seems that restarting  
> xend
> might fix the problem for me.
>
> It was much nicer when it was a simple soft link in auto to the config
> in vm. From this thread it sounds like you can still do this? Does  
> that
> mean no more virt-manager?
>
> Should I be doing this a different way?
>
> Thanks,
> James
> ps- sorry this got so long....
>
>
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