xend/xm on 4.1/4.2 on Fedora (FC17)

xend/xm on 4.1/4.2 on Fedora (FC17)

[Dan Magenheimer]

Is there a how-to for starting/running xm/xend on Fedora (FC17)?
Is it different for Xen 4.1 and 4.2?

I did find this:
http://wiki.xen.org/wiki/Xen_Common_Problems#Starting_xend_fails.3F 
but it doesn't seem to help.  And this:
http://wiki.xen.org/wiki/Fedora_Host_Installation 
only addresses xl.

I expect I need to do something manually to start xencommons or
something like that but obvious things don't seem to work,
and I'm not a FC17 expert at all.

I am able to use xl in general... I need to run xm instead for
some specific testing (on both 4.1 and 4.2).

Thanks for any help and sorry for the newbie-ish question!

Dan

Re: xend/xm on 4.1/4.2 on Fedora (FC17)

[Konrad Rzeszutek Wilk]

On Fri, Aug 31, 2012 at 02:08:49PM -0700, Dan Magenheimer wrote:
> Is there a how-to for starting/running xm/xend on Fedora (FC17)?
> Is it different for Xen 4.1 and 4.2?
> 
> I did find this:
> http://wiki.xen.org/wiki/Xen_Common_Problems#Starting_xend_fails.3F 
> but it doesn't seem to help.  And this:
> http://wiki.xen.org/wiki/Fedora_Host_Installation 
> only addresses xl.
> 
> I expect I need to do something manually to start xencommons or
> something like that but obvious things don't seem to work,

How are you running this? When you boot up does it work? Or is this not
working after your restart xend couple of times?

> and I'm not a FC17 expert at all.

service xend start

But you also need to enable it if it wasn't enabled using systemd.
The syntax was something like (look at
http://fedoraproject.org/wiki/SysVinit_to_Systemd_Cheatsheet)

systemctl enable xend.service

(thought it might not be called xend but something else).
> 
> I am able to use xl in general... I need to run xm instead for
> some specific testing (on both 4.1 and 4.2).
> 
> Thanks for any help and sorry for the newbie-ish question!
> 
> Dan

Re: xend/xm on 4.1/4.2 on Fedora (FC17)

[Dan Magenheimer]

> From: Konrad Rzeszutek Wilk
> Subject: Re: xend/xm on 4.1/4.2 on Fedora (FC17)
> 
> On Fri, Aug 31, 2012 at 02:08:49PM -0700, Dan Magenheimer wrote:
> > Is there a how-to for starting/running xm/xend on Fedora (FC17)?
> > Is it different for Xen 4.1 and 4.2?
> >
> > I did find this:
> > http://wiki.xen.org/wiki/Xen_Common_Problems#Starting_xend_fails.3F
> > but it doesn't seem to help.  And this:
> > http://wiki.xen.org/wiki/Fedora_Host_Installation
> > only addresses xl.
> >
> > I expect I need to do something manually to start xencommons or
> > something like that but obvious things don't seem to work,
> 
> How are you running this? When you boot up does it work? Or is this not
> working after your restart xend couple of times?
> 
> > and I'm not a FC17 expert at all.
> 
> service xend start
> 
> But you also need to enable it if it wasn't enabled using systemd.
> The syntax was something like (look at
> http://fedoraproject.org/wiki/SysVinit_to_Systemd_Cheatsheet)
> 
> systemctl enable xend.service
> 
> (thought it might not be called xend but something else).

That was one of the obvious things I tried, but it fails to start :-/

Dan

Re: xend/xm on 4.1/4.2 on Fedora (FC17)

[Konrad Rzeszutek Wilk]

On Fri, Aug 31, 2012 at 02:16:18PM -0700, Dan Magenheimer wrote:
> > From: Konrad Rzeszutek Wilk
> > Subject: Re: xend/xm on 4.1/4.2 on Fedora (FC17)
> > 
> > On Fri, Aug 31, 2012 at 02:08:49PM -0700, Dan Magenheimer wrote:
> > > Is there a how-to for starting/running xm/xend on Fedora (FC17)?
> > > Is it different for Xen 4.1 and 4.2?
> > >
> > > I did find this:
> > > http://wiki.xen.org/wiki/Xen_Common_Problems#Starting_xend_fails.3F
> > > but it doesn't seem to help.  And this:
> > > http://wiki.xen.org/wiki/Fedora_Host_Installation
> > > only addresses xl.
> > >
> > > I expect I need to do something manually to start xencommons or
> > > something like that but obvious things don't seem to work,
> > 
> > How are you running this? When you boot up does it work? Or is this not
> > working after your restart xend couple of times?
> > 
> > > and I'm not a FC17 expert at all.
> > 
> > service xend start
> > 
> > But you also need to enable it if it wasn't enabled using systemd.
> > The syntax was something like (look at
> > http://fedoraproject.org/wiki/SysVinit_to_Systemd_Cheatsheet)
> > 
> > systemctl enable xend.service
> > 
> > (thought it might not be called xend but something else).
> 
> That was one of the obvious things I tried, but it fails to start :-/

Are you running in graphical mode? If so see if there are some weird
SELinux warnings.
> 
> Dan

Re: xend/xm on 4.1/4.2 on Fedora (FC17)

[Dan Magenheimer]

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> From: Konrad Rzeszutek Wilk
> Sent: Friday, August 31, 2012 4:22 PM
> To: Dan Magenheimer
> Cc: Pasi Kärkkäinen; xen-devel@lists.xen.org
> Subject: Re: xend/xm on 4.1/4.2 on Fedora (FC17)
> 
> On Fri, Aug 31, 2012 at 02:16:18PM -0700, Dan Magenheimer wrote:
> > > From: Konrad Rzeszutek Wilk
> > > Subject: Re: xend/xm on 4.1/4.2 on Fedora (FC17)
> > >
> > > On Fri, Aug 31, 2012 at 02:08:49PM -0700, Dan Magenheimer wrote:
> > > > Is there a how-to for starting/running xm/xend on Fedora (FC17)?
> > > > Is it different for Xen 4.1 and 4.2?
> > > >
> > > > I did find this:
> > > > http://wiki.xen.org/wiki/Xen_Common_Problems#Starting_xend_fails.3F
> > > > but it doesn't seem to help.  And this:
> > > > http://wiki.xen.org/wiki/Fedora_Host_Installation
> > > > only addresses xl.
> > > >
> > > > I expect I need to do something manually to start xencommons or
> > > > something like that but obvious things don't seem to work,
> > >
> > > How are you running this? When you boot up does it work? Or is this not
> > > working after your restart xend couple of times?
> > >
> > > > and I'm not a FC17 expert at all.
> > >
> > > service xend start
> > >
> > > But you also need to enable it if it wasn't enabled using systemd.
> > > The syntax was something like (look at
> > > http://fedoraproject.org/wiki/SysVinit_to_Systemd_Cheatsheet)
> > >
> > > systemctl enable xend.service
> > >
> > > (thought it might not be called xend but something else).
> >
> > That was one of the obvious things I tried, but it fails to start :-/
> 
> Are you running in graphical mode? If so see if there are some weird
> SELinux warnings.

SELinux is disabled.  But yes, I am booting in graphical mode.

Hmmm... manually running "/usr/sbin/xend start" seems to work though.
I guess that is all I need as I can start it in /etc/rc.d/rc.local.

Thanks for the help!
Dan



Dan

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Re: xend/xm on 4.1/4.2 on Fedora (FC17)

[M A Young]

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On Fri, 31 Aug 2012, Dan Magenheimer wrote:

>> From: Konrad Rzeszutek Wilk
>> Sent: Friday, August 31, 2012 4:22 PM
>> To: Dan Magenheimer
>> Cc: Pasi Kärkkäinen; xen-devel@lists.xen.org
>> Subject: Re: xend/xm on 4.1/4.2 on Fedora (FC17)
>>
>> On Fri, Aug 31, 2012 at 02:16:18PM -0700, Dan Magenheimer wrote:
>>>> From: Konrad Rzeszutek Wilk
>>>> Subject: Re: xend/xm on 4.1/4.2 on Fedora (FC17)
>>>>
>>>> On Fri, Aug 31, 2012 at 02:08:49PM -0700, Dan Magenheimer wrote:
>>>>> Is there a how-to for starting/running xm/xend on Fedora (FC17)?
>>>>> Is it different for Xen 4.1 and 4.2?
>>>>>
>>>>> I did find this:
>>>>> http://wiki.xen.org/wiki/Xen_Common_Problems#Starting_xend_fails.3F
>>>>> but it doesn't seem to help.  And this:
>>>>> http://wiki.xen.org/wiki/Fedora_Host_Installation
>>>>> only addresses xl.
>>>>>
>>>>> I expect I need to do something manually to start xencommons or
>>>>> something like that but obvious things don't seem to work,
>>>>
>>>> How are you running this? When you boot up does it work? Or is this not
>>>> working after your restart xend couple of times?
>>>>
>>>>> and I'm not a FC17 expert at all.
>>>>
>>>> service xend start
>>>>
>>>> But you also need to enable it if it wasn't enabled using systemd.
>>>> The syntax was something like (look at
>>>> http://fedoraproject.org/wiki/SysVinit_to_Systemd_Cheatsheet)
>>>>
>>>> systemctl enable xend.service
>>>>
>>>> (thought it might not be called xend but something else).
>>>
>>> That was one of the obvious things I tried, but it fails to start :-/
>>
>> Are you running in graphical mode? If so see if there are some weird
>> SELinux warnings.
>
> SELinux is disabled.  But yes, I am booting in graphical mode.
>
> Hmmm... manually running "/usr/sbin/xend start" seems to work though.
> I guess that is all I need as I can start it in /etc/rc.d/rc.local.

Strange, it is usually selinux that breaks xend. If you run
systemctl status xend.service
it should give you some indication of what went wrong.

Note that
systemctl enable xend.service
enables xend on boot (it is off by default in the package because xend is 
being deprecated), to start it by hand you need
systemctl start xend.service

 	Michael Young

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Re: xend/xm on 4.1/4.2 on Fedora (FC17)

[Dan Magenheimer]

> From: M A Young [mailto:m.a.young@durham.ac.uk]
> Subject: Re: [Xen-devel] xend/xm on 4.1/4.2 on Fedora (FC17)
> 
> On Fri, 31 Aug 2012, Dan Magenheimer wrote:
> 
> >> From: Konrad Rzeszutek Wilk
> >> Sent: Friday, August 31, 2012 4:22 PM
> >> To: Dan Magenheimer
> >> Cc: Pasi Kärkkäinen; xen-devel@lists.xen.org
> >> Subject: Re: xend/xm on 4.1/4.2 on Fedora (FC17)
> >>
> >> On Fri, Aug 31, 2012 at 02:16:18PM -0700, Dan Magenheimer wrote:
> >>>> From: Konrad Rzeszutek Wilk
> >>>> Subject: Re: xend/xm on 4.1/4.2 on Fedora (FC17)
> >>>>
> >>>> On Fri, Aug 31, 2012 at 02:08:49PM -0700, Dan Magenheimer wrote:
> >>>>> Is there a how-to for starting/running xm/xend on Fedora (FC17)?
> >>>>> Is it different for Xen 4.1 and 4.2?
> >>>>>
> >>>>> I did find this:
> >>>>> http://wiki.xen.org/wiki/Xen_Common_Problems#Starting_xend_fails.3F
> >>>>> but it doesn't seem to help.  And this:
> >>>>> http://wiki.xen.org/wiki/Fedora_Host_Installation
> >>>>> only addresses xl.
> >>>>>
> >>>>> I expect I need to do something manually to start xencommons or
> >>>>> something like that but obvious things don't seem to work,
> >>>>
> >>>> How are you running this? When you boot up does it work? Or is this not
> >>>> working after your restart xend couple of times?
> >>>>
> >>>>> and I'm not a FC17 expert at all.
> >>>>
> >>>> service xend start
> >>>>
> >>>> But you also need to enable it if it wasn't enabled using systemd.
> >>>> The syntax was something like (look at
> >>>> http://fedoraproject.org/wiki/SysVinit_to_Systemd_Cheatsheet)
> >>>>
> >>>> systemctl enable xend.service
> >>>>
> >>>> (thought it might not be called xend but something else).
> >>>
> >>> That was one of the obvious things I tried, but it fails to start :-/
> >>
> >> Are you running in graphical mode? If so see if there are some weird
> >> SELinux warnings.
> >
> > SELinux is disabled.  But yes, I am booting in graphical mode.
> >
> > Hmmm... manually running "/usr/sbin/xend start" seems to work though.
> > I guess that is all I need as I can start it in /etc/rc.d/rc.local.
> 
> Strange, it is usually selinux that breaks xend. If you run
> systemctl status xend.service
> it should give you some indication of what went wrong.
> 
> Note that
> systemctl enable xend.service
> enables xend on boot (it is off by default in the package because xend is
> being deprecated), to start it by hand you need
> systemctl start xend.service

Hi Michael --

Thanks much for your response!

"systemctl start xend.service" failed, "systemctl status xend.service"
revealed only very cryptic information... that's why I asked for
help, assuming that others might know if there was some missing magic.

In any case, since manual "/usr/sbin/xend start" works, I will
try to reproduce the systemctl issue sometime on a future install.

Thanks,
Dan