All,
First thanks to everyone who assisted me - good stuff! And very much
appreciated!
A few things to note:
- CentOS 6.x has added support for Xen - which is Xen 4.2x
- xend, xm, etc is deprecated (but does work)
- the new way to do things is using xl vs xm
I, of course, didn't bother to look at all the "newness" in Xen 4.x - so was
completely clueless to what behavior I was seeing...
I disable reboot once VM installs - which once install completed, I noted "xm
list" showed me the VM yet it had no ID associated with it at all...
I also noted no config file was created down in the /etc/xen dir...
So to get this working:
* I disabled the auto reboot option for VMs
* Once installed I did "xl delete [vm name]" Note "xl" not "xm"
* I manually created a config file for the VM
* Ran "xm create [vm name]"
* VM starts as expected
According to the Xen 4.1 documentation xend and xm are deprecated in favor of
xl. I tried turning off xend but KOAN will not provision the VM without it...
Not a big deal since it still works at the moment.
Question I do have, is there hope of supporting Xen 4.x with KOAN?
Again - thank you all for your help...
Flossy
----- Original Message -----
From: "Scot Floess" <[email protected]>
To: "cobbler mailing list" <[email protected]>
Sent: Monday, December 2, 2013 9:04:30 AM
Subject: Re: [cobbler] Using KOAN to install a VM under CentOS 6.4 using CentOS
Xen...it installs over and over again
Dylan,
Great question - alas this is a VM... And that's not the issue :)
I'm about to follow-up with what I discovered this weekend and my work-around
:)
----- Original Message -----
<blockquote>
From: "Dylan Swift" <[email protected]>
To: "cobbler mailing list" <[email protected]>
Sent: Friday, November 29, 2013 3:02:00 AM
Subject: Re: [cobbler] Using KOAN to install a VM under CentOS 6.4 using CentOS
Xen...it installs over and over again
Just a suggestion - is the boot order sequence for the server being provisioned
set to PXE before internal disk? If so the newly built server will reboot, and
before it gets to the newly built OS it will perform another PXE install.
Dylan
On 28 Nov 2013 01:11, "James Cammarata" < [email protected] > wrote:
<blockquote>
What is your "server: " setting? It appears it's "cobbler", which will work as
long as that resolves in DNS, otherwise you need to set it to a DNS resolvable
name or IP.
On Wed, Nov 27, 2013 at 2:56 PM, Scot Floess < [email protected] > wrote:
<blockquote>
James,
I did restart cobblerd...
And this is literally what I see now when issuing:
cobbler system getks --name=centos-workstation
Result:
wget " http://cobbler/cblr/svc/op/ks/system/centos-workstation " -O
/root/cobbler.ks
wget " http://cobbler/cblr/svc/op/trig/mode/post/system/centos-workstation " -O
/dev/null
wget " http://cobbler/cblr/svc/op/nopxe/system/centos-workstation " -O
/dev/null
%end
<blockquote>
From: "James Cammarata" < [email protected] >
To: "cobbler mailing list" < [email protected] >
Sent: Wednesday, November 27, 2013 3:47:37 PM
Subject: Re: [cobbler] Using KOAN to install a VM under CentOS 6.4 using CentOS
Xen...it installs over and over again
Did you restart cobblerd after making the settings change? You should also be
seeing this in the output from the kickstart_done snippet:
wget " http://x.x.x.x/cblr/svc/op/nopxe/system/foo " -O /dev/null
That is the trigger to disable the netboot flag.
On Wed, Nov 27, 2013 at 2:41 PM, Scot Floess < [email protected] > wrote:
<blockquote>
James,
OK I ensured:
/etc/cobbler/settings:
pxe_just_once: 1
-and-
My kickstart ends with:
$SNIPPET('kickstart_done')
%end
I'm seeing exactly the same behavior... In fact I just koan'd a new instance
and its now on it's second install all by itself...
I am absolutely at a loss... This all worked for me using stock CentOS 5.x
hosts... Really the difference is I'm using Xen as supported under CentOS 6.4 -
so not sure if that has anything to do with this or not...
<blockquote>
From: "James Cammarata" < [email protected] >
To: "cobbler mailing list" < [email protected] >
Sent: Wednesday, November 27, 2013 2:59:37 PM
Subject: Re: [cobbler] Using KOAN to install a VM under CentOS 6.4 using CentOS
Xen...it installs over and over again
Yes, it should be the last thing before the %end, as you have it.
Have you also set pxe_just_once:1 in your cobbler settings?
On Wed, Nov 27, 2013 at 1:44 PM, Scot Floess < [email protected] > wrote:
<blockquote>
James,
Curious - is something from the kickstart_done that does the right thing as far
as ensuring "kick start" that KOAN initially uses isn't copied over or
something like that? To be honest, that's what it feels like is happening ...
once installed the VM doesn't have the ability to boot off the installed
bootloader and then simply uses the same "kickstart" to reinstall again...
I don't know if this may be the issue but at the end of my kickstart, it looks
liek the following:
$SNIPPET('kickstart_done')
%end
Is that out of order maybe?
Thanks!
Flossy
<blockquote>
From: "Scot Floess" < [email protected] >
To: "cobbler mailing list" < [email protected] >
Sent: Tuesday, November 26, 2013 2:20:34 PM
Subject: Re: [cobbler] Using KOAN to install a VM under CentOS 6.4 using CentOS
Xen...it installs over and over again
James,
Interesting!
So I have an old kickstart I've been using since Cobbler 1.6x days... In it I
have $kickstart_done - but when executing
cobbler system getks --name=centos-workstation
I see it is not expanded!
So I added the snippet to the end of my kickstart like so:
$SNIPPET('kickstart_done')
And now see:
wget " http://cobbler/cblr/svc/op/ks/system/centos-workstation " -O
/root/cobbler.ks
wget " http://cobbler/cblr/svc/op/trig/mode/post/system/centos-workstation " -O
/dev/null
However, I am still getting the reinstall happening...
<blockquote>
From: "James Cammarata" < [email protected] >
To: "cobbler mailing list" < [email protected] >
Sent: Tuesday, November 26, 2013 1:37:53 PM
Subject: Re: [cobbler] Using KOAN to install a VM under CentOS 6.4 using CentOS
Xen...it installs over and over again
Do you also have the kickstart done ($SNIPPET('kickstart_done')) snippet
included in your %post section? That is the piece which notifies the cobbler
server the PXE is complete and toggles the netboot-enabled flag.
On Tue, Nov 26, 2013 at 11:37 AM, Scot Floess < [email protected] > wrote:
<blockquote>
I should say I also tried setting netboot-enabled to 0 and verify its not
enabled in the UI...
<blockquote>
From: "Scot Floess" < [email protected] >
To: "cobbler mailing list" < [email protected] >
Sent: Tuesday, November 26, 2013 12:33:29 PM
Subject: Re: [cobbler] Using KOAN to install a VM under CentOS 6.4 using CentOS
Xen...it installs over and over again
Bryan,
Thanks for the response!
Alas this isn't a netboot problem - although at first glance I thought you were
correct. Unfortunately, I'm watching my VM reinstall itself again :(
It's almost like I "koan --replace-self" but that's not what I told it to do.
In fact, this is what I executed:
koan --server=cobbler --system=centos-workstation --virt
I literally see the VM install itself, bootloader installs then the VM shutdown
and is started up again and its as if I initiated the original " koan
--server=cobbler --system=centos-workstation --virt"
Flossy
<blockquote>
From: "Bryan Hughes" < [email protected] >
To: "cobbler mailing list" < [email protected] >
Sent: Tuesday, November 26, 2013 11:24:53 AM
Subject: Re: [cobbler] Using KOAN to install a VM under CentOS 6.4 using CentOS
Xen...it installs over and over again
it is because of the "Netboot Enabled" flag in cobbler.
After the node begins its kickstart either change netboot enabled to false
(unchecked) in GUI or run the following command:
cobbler system edit --name=<hostname> --netboot-enabled=0
That should fix it for you.
Make sure you do it AFTER it begins PXE (so during DHCP stage is fine, right
after it gets its IP).
On 11/26/13, 9:30 AM, Scot Floess wrote:
<blockquote>
All,
I'm somewhat confounded by what I'm seeing when using KOAN. I have a machine
running CentOS 6.4 and installed CentOS-Xen using para virtualization (my
hardware on this box doesn't support full virtualization)...
I had an old VM I created under CentOS 5.9 Xen which I migrated over to this
new machine and it runs fine...
However, I am trying to spin up a new VM and what I see happening is the
install proceeds as expected (again using KOAN). I see in VNC when the boot
loader installs and then the VM attempts to reboot and run... What it does next
is not expected: the install proceeds again...and this continues forever...
Once it reinstalls, it reboots and reinstalls again...
This all works fine under CentOS 5.x - so it could be Xen 4.2 or it could just
be me :) Which, BTW, CentOS-Xen is 4.2 I believe.
Thanks ahead of time...
Flossy
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