Re: [Xen-API] How to create Templates for Network Installs that need additional Kernel-parameters ?? eliloader.py - patch suggestion

[Burnie <burnie@xxxxxx>]

On 11/09/2012 11:57 AM, Andreas Balg wrote:
> Hello Burnie, Hi Grant, and everybody else reading as well of course,
I'll just pretend you posted this to the list  :-)


> thanks a lot for your continued support in this issue - at first I
> wanted to make sure I do not misunderstand some concept and making it
> more complicated as it should be but I just tried the way Burnie
> outlined from within XC (XC 6.1, XCP 1.1 and XCP 1.6b1) and it also did
> not work the way it should.

I haven't tried this in XCP 1.1, but it works here in both 1.4.90 and 
1.6.06...
I really don't see your problem.


If I try a "quick create", I find this in the xensource.log:

[20121109T11:41:38.079Z|debug|xcp-10|10471|Async.VM.start 
R:c23fa9ee5de8|bootloader] Bootloader commandline: /usr/bin/eliloader -q 
--default_args= 
--extra_args=ks=http://192.168.1.100/kickstart-minimal6-i386.cfg 
ksdevice=eth0 --vm=198b81d5-caf0-7a03-34dc-7db8a07bcdd2 /dev/xvda
[20121109T11:41:52.152Z|debug|xcp-10|10471|Async.VM.start 
R:c23fa9ee5de8|xapi] build linux "/var/run/xend/boot/vmlinuz-6r20ll" 
"ks=http://192.168.1.100/kickstart-minimal6-i386.cfg ksdevice=eth0 
method=http://mirror.centos.org/centos/6/os/i386"; vcpus:1 
mem_max:1048576 mem_target:1048576
[20121109T11:41:52.153Z|debug|xcp-10|10471|Async.VM.start 
R:c23fa9ee5de8|xenguesthelper] connect: args = [ -mode linux_build 
-domid 7 -mem_max_mib 1024 -mem_start_mib 1024 -image 
/var/run/xend/boot/vmlinuz-6r20ll -ramdisk 
/var/run/xend/boot/ramdisk-QmbQpZ -cmdline 
ks=http://192.168.1.100/kickstart-minimal6-i386.cfg ksdevice=eth0 
method=http://mirror.centos.org/centos/6/os/i386 -features  -flags 0 
-store_port 1 -console_port 2 -fork true ]

If I do a Wizard create of the same template, the boot args are gone:

[20121109T11:51:58.861Z|debug|xcp-11|1453 inet-RPC|Async.VM.start 
R:1b8958a8b66e|bootloader] Bootloader commandline: /usr/bin/eliloader -q 
--default_args= --extra_args= --vm=70f399d2-3339-2563-34d3-a589cad4fde0 
/dev/xvda
[20121109T11:52:16.025Z|debug|xcp-11|1453 inet-RPC|Async.VM.start 
R:1b8958a8b66e|xapi] build linux "/var/run/xend/boot/vmlinuz-5O6uuP" " 
method=http://mirror.centos.org/centos/6/os/i386"; vcpus:1 
mem_max:1048576 mem_target:1048576
[20121109T11:52:16.026Z|debug|xcp-11|1453 inet-RPC|Async.VM.start 
R:1b8958a8b66e|xenguesthelper] connect: args = [ -mode linux_build 
-domid 8 -mem_max_mib 1024 -mem_start_mib 1024 -image 
/var/run/xend/boot/vmlinuz-5O6uuP -ramdisk 
/var/run/xend/boot/ramdisk-xJzUd7 -cmdline 
method=http://mirror.centos.org/centos/6/os/i386/ -features  -flags 0 
-store_port 1 -console_port 2 -fork true ]
(both are 1.4.90)



> Once again if you want to do a networked installation the boot-options
> for the very first time the VM starts in order to install (there is no
> difference here using quick create or the full wizard ) are substituted
> by what eliloader thinks it needs to get it up.
>
> Yes - the boot options you enter for a VM created using the network
> installation method are stored in PV-args and remain there as they are
> expected, but eliloader does not care at all about them (this as also
> what I found looking at eliloader code so far) for the first start. For
> the first start eliloader himself downloads the kernel and installer
> images and boots them with his autogenerated parameters to have your VM
> installed - Basta. So you end up in an interactive network installation
> again no matter what you enter as boot-options. Those options are taken
> into account after the network-installation at first Local-Boot where
> the image is supposed to boot from disk already - Of course now you
> don't want them any more.
>
> This is true for the network installation only - if you use cd images or
> other installmedia it works as expected ...
>
> Still the patch is the only way so far to get this setup working as
> expected here to have eliloader override its autogenerated stuff and use
> what I tell it for me!
>
> Cheers
> Andreas
>
> > On 11/07/2012 05:21 PM, Andreas Balg wrote:
> >
> > > The GUI makes the difference - If you doubleclick on the template you
> > > CAN supply all the parameters you need for kickstarting but you cannot
> > > have them prefilled - and even worse: this won't be used for the first
> > > boot - you'll always find "graphic utf8" preloaded (this is what is in
> > > PV-args later on) - This is of course useless for kickstarting
> >
> >
> > If you are using XC, then the "New VM Wizard" (doubleclick) seems to
> > remove the boot options, yes.
> > But you can use the "quick create", and then the ks boot options
> > still remains.
> >
> > These commands will quickly generate a template with "quick create"
> > enabled:
> > (only the last two commands differs from Grants tutorials)
> >
> > NETUUID=$(xe network-list bridge=xenbr0 --minimal)
> > TMPLUUID=$(xe template-list | grep -B1 'name-label.*Red Hat.* 6.*64-bit'
> > | awk -F: '/uuid/{print $2}'| tr -d " ")
> > VMUUID=$(xe vm-install new-name-label="CentOS6-64bit"
> > template=${TMPLUUID})
> > xe vif-create vm-uuid=$VMUUID network-uuid=$NETUUID mac=random device=0
> > xe vm-param-set uuid=$VMUUID
> > other-config:install-repository=http://mirror.centos.org/centos/6/os/x86_64
> > xe vm-param-set uuid=$VMUUID
> > PV-args="ks=http://grantmcwilliams.com/files/kickstart-minimal6-x86_64.cfg
> > ksdevice=eth0"
> > xe vm-param-set uuid=${VMUUID} other-config:disable_pv_vnc=1
> > other-config:instant=true
> > xe vm-param-set uuid=${VMUUID} is-a-template=true
> >
> >
> > Or you could do the same from within XC:
> > - create a vm from the standard template, add install from url
> > and add boot params "ks=... ksdevice=..."
> > - uncheck "Start the new VM automatically" on the last wizard page
> > - convert the vm to template
> >
> > Then create a new VM from the template by right-clicking the new
> > template and select "Quick Create"
> >
> > (Tested in XC 6.1, don't know if this works in older versions)
> >
> > --
> > Bernt 'Burnie' Pettersen /// DoD#2345
> > ///
> > - Creative brains need creative workhours! -
> >
> > _______________________________________________
> > Xen-api mailing list
> > Xen-api@xxxxxxxxxxxxx
> > http://lists.xen.org/cgi-bin/mailman/listinfo/xen-api

--
Bernt  'Burnie'  Pettersen  ///  DoD#2345
<E-mail:burnie@xxxxxx>     ///  <URL:http://burnie.sh/>
       - Creative brains need creative workhours! -

_______________________________________________
Xen-api mailing list
Xen-api@xxxxxxxxxxxxx
http://lists.xen.org/cgi-bin/mailman/listinfo/xen-api