Re: [CentOS-virt] Need Help with Xen Please

2008-11-18 Thread Kai Schaetzl
You just need a shell for running virt-install and attach to the xen 
console, no X.

Kai

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Re: [CentOS-virt] Need Help with Xen Please

2008-11-18 Thread Kai Schaetzl
Jason Taylor wrote on Tue, 18 Nov 2008 03:47:09 -0700:

> I proceeded to use virt-install (and later virt-install --nographics and
> virt-install --vnc) and none of them will install the guest. It always fails
> saying that there is no console and to reconnect.

Ok, sorry, I expected to get a complete virt-install command line where I 
could derive the OS you want to install from. My mistake. You want to run 
virt-install without any parameter and answer all the questions. In that case 
I need to ask what OS you want to install. And, although you don't want to, 
have a look at man virt-install and then try an install that uses the command
-line parameters instead of asking questions.

Also, earlier you wrote:

> Xend does start and I can do everything listed in the tutorial until I get
> to the virt-manager part.

So, is your problem now with virt-install or with virt-manager? Does your VM 
get created? Can you start it with "xm create "? Do you see it 
running in "xm list"? The main point here is that it's not clear from the 
beginning if virt-install cannot connect to the console and thus you cannot 
install the OS or if it all creates just fine and you later cannot attach to 
the running domU console.

Kai

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Re: [CentOS-virt] Need Help with Xen Please

2008-11-18 Thread Brett Serkez
On Tue, Nov 18, 2008 at 6:41 AM, Brett Worth <[EMAIL PROTECTED]> wrote:
> Jason Taylor wrote:
> When you connect to the Centos server from your remote console you said 
> before that you're
> using ssh.  Is this from another Linux system?  You need to ensure that you 
> have access to
> your local graphical interface from the remote server i.e. that you have a 
> valid DISPLAY
> variable set.  If "echo $DISPLAY" returns an empty string then maybe you just 
> need to do
> "ssh -X centos_server" when connecting so that ssh will forward the X11 back 
> to your
> display.  Then virt-manager should work.

Sometimes ssh -Y works when ssh -X doesn't.  Over time I've started
using ssh -Y as it always works.

If the server is setup correctly, it will not allow you to ssh as
root, you'll need to ssh -Y as yourself and then su -.  When you use
the su command you might loose the DISPLAY variable, in this case
simply re-establish it and all should work.

If you workstation is Linux, you have an X-Display running.  If it is
Windows, you can use Cygwin as your X-Server.

Brett
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Re: [CentOS-virt] Need Help with Xen Please

2008-11-18 Thread Brett Worth
Jason Taylor wrote:
> Kai:
> 
> I used yum to install xen and xen-kernel  I then edited the grub config and
> rebooted the server.  Using uname -r I verified I was in the right kernel.
> 
> 
> I proceeded to use virt-install (and later virt-install --nographics and
> virt-install --vnc) and none of them will install the guest. It always fails
> saying that there is no console and to reconnect. 

When you connect to the Centos server from your remote console you said before 
that you're
using ssh.  Is this from another Linux system?  You need to ensure that you 
have access to
your local graphical interface from the remote server i.e. that you have a 
valid DISPLAY
variable set.  If "echo $DISPLAY" returns an empty string then maybe you just 
need to do
"ssh -X centos_server" when connecting so that ssh will forward the X11 back to 
your
display.  Then virt-manager should work.

Then again I might be misunderstanding the problem.

Brett

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Re: [CentOS-virt] Need Help with Xen Please

2008-11-18 Thread Karanbir Singh

Kai Schaetzl wrote:

Tru Huynh wrote on Tue, 18 Nov 2008 09:41:10 +0100:


what don't you use http://wiki.centos.org/HowTos/Xen/InstallingCentOSDomU


This tutorial is much more complicated than using virt-install. There is no 
need for "installation kernels" and such. You just run virt-install and off 
you go.


yeah, its a bit odd that we dont have a libvirt/virttools based howto. 
Perhaps something to take up.


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RE: [CentOS-virt] Need Help with Xen Please

2008-11-18 Thread Jason Taylor
Kai:

I used yum to install xen and xen-kernel  I then edited the grub config and
rebooted the server.  Using uname -r I verified I was in the right kernel.


I proceeded to use virt-install (and later virt-install --nographics and
virt-install --vnc) and none of them will install the guest. It always fails
saying that there is no console and to reconnect. 

Using xm console ##  I try to connect to the console but am given the
following error in the qemu log:

qemu: the number of cpus is 1

 

 *** image /local/domain/0/backend/vbd/5/768 format raw driver 

 0x80e7940

 

 *** image /local/domain/0/backend/vbd/5/5632 format raw driver 

 0x80e7940 Watching /local/domain/5/logdirty/next-active

 

 Could not initialize SDL - exiting

 


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Kai Schaetzl
Sent: Tuesday, November 18, 2008 3:34 A
To: centos-virt@centos.org
Subject: Re: [CentOS-virt] Need Help with Xen Please

Jason, I'm surely not going to read the whole tutorial. Tell what exact 
virt-install command you used and any preparation steps if you did any. 
(e.g. what did you install to get xen on the system.)

Kai

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Re: [CentOS-virt] Need Help with Xen Please

2008-11-18 Thread Kai Schaetzl
Jason, I'm surely not going to read the whole tutorial. Tell what exact 
virt-install command you used and any preparation steps if you did any. 
(e.g. what did you install to get xen on the system.)

Kai

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Re: [CentOS-virt] Need Help with Xen Please

2008-11-18 Thread Kai Schaetzl
Tru Huynh wrote on Tue, 18 Nov 2008 09:41:10 +0100:

> what don't you use http://wiki.centos.org/HowTos/Xen/InstallingCentOSDomU

This tutorial is much more complicated than using virt-install. There is no 
need for "installation kernels" and such. You just run virt-install and off 
you go.

Kai

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Re: [CentOS-virt] Need Help with Xen Please

2008-11-18 Thread Tru Huynh
On Tue, Nov 18, 2008 at 01:20:16AM -0700, Jason Taylor wrote:
> Hello Kai:
> 
what don't you use http://wiki.centos.org/HowTos/Xen/InstallingCentOSDomU
and related links instead of howtoforge ?

Tru

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RE: [CentOS-virt] Need Help with Xen Please

2008-11-18 Thread Jason Taylor
Hello Kai:

Thank you for your feedback. I apologize for not using the right
terminology. As mentioned I followed the tutorial at
http://www.howtoforge.com/centos_5.0_xen  so that shows all the commands I
used.  When I tried to install a guest/domU I get the previous mentioned
error. Virt-install doesn’t seem to work as it seems to require a console
which I do not have. All I have is root access to the server via SSH (not in
same physical location as server)

Jason

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of Kai Schaetzl
Sent: Sunday, November 16, 2008 4:31 A
To: centos-virt@centos.org
Subject: Re: [CentOS-virt] Need Help with Xen Please

Jason Taylor wrote on Sat, 15 Nov 2008 17:00:46 -0700:

> One thing to note is that the base Xen installs fine it seems
> but when trying to create the virtual instance (domU) it says it cannot
> connect to the console.

Then try without making it connect to the console. (I may have misunderstood

what you mean by "create", note, "create" means *starting* an existing VM.
see 
below.)

I looked at the how-to, it uses virt-install. That works very well. What 
exactly did you install as a domU? What where your commands? And when do you

get that error, when you run virt-install and it wants to attach to the 
console or once it's finished and you start the VM up?

One thing: you want to use the Xen 3.2 rpms provided by xen.org for serious 
production work on CentOS and not the one coming with CentOS. Suggest you
read 
the archives of the list for all tips and caveats.

Kai

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