Re: [ovirt-users] python floppy in RunOnce mode

24 Dec 2014

      I can see this behaviour in ovirt 3.5 environment 
(ovirt-engine-3.5.0.1-1.el6) and in rhev 3.4 environment 
(rhevm-3.4.3-1.2.el6ev).

I'm stuck, what I'm doing wrong? :-(

Il 23/12/2014 10:16, Giulio Casella ha scritto:
...
Yes, the VM is windows 7:
print myvm.get_os().get_type()
shows "windows_7x64"
Anyway I tried to force it, as you suggested, but with no luck...
Il 22/12/2014 17:52, Juan Hernández ha scritto:
...
On 12/22/2014 01:21 PM, Giulio Casella wrote:
...
Hi Juan,
I tried to use builtin sysprep files, with no luck.
Here is my code:
myvm = api.vms.get(name="vmname")
initialization = params.Initialization()
myvm.set_initialization(initialization)
myvm.update()
myvm.start(params.Action())
Virtual Machine starts, but there is no mounted floppy.
VM is a freshly installed Windows 7 x86_64, with ovirt guest agent and
no other software.
Any ideas?
Giulio
Is the operating system of the set to one of the Windows variants? If it
isn't set to a Windows variant then the Sysprep logic won't trigger. To
make sure you can update the OS from the script:
myvm = api.vms.get(name="vmname")
initialization = params.Initialization()
myvm.set_initialization(initialization)
myvm.set_os(
   params.OperatingSystem(
     type_="windows_7x64"
   )
)
myvm.update()
myvm.start(params.Action())
...
Il 24/10/2014 16:08, Giulio Casella ha scritto:
...
Il 23/10/2014 20:59, Juan Hernandez ha scritto:
...
On 10/23/2014 09:40 AM, Giulio Casella wrote:
...
Hi,
I'm trying to boot a vm with non persistent floppy using python ovirt
sdk (the "RunOnce" way in administrator portal), but guest OS
can't see
floppy drive. The ultimate goal is to deploy floppy with sysprep
unattend.xml file for windows 7 pools of vm.
Here is a snippet of code I use:
-------------------------------------------------
myvm = api.vms.get(name="vmname")
content="This is file content!"
f=params.File(name="foobar.txt",content=content)
fs=params.Files()
fs.add_file(f)
payload=params.Payload()
payload.set_type("floppy")
payload.set_files(fs)
payloads=params.Payloads()
payloads.add_payload(payload)
thevm=params.VM()
thevm.set_payloads(payloads)
action=params.Action(vm=thevm)
myvm.start(action=action)
xml = ParseHelper.toXml(action)
print xml
-------------------------------------------------
As you can see, for debugging purpose, I print my xml action, and
I get:
-------------------------------------------------
<action>
       <vm>
           <payloads>
               <payload type="floppy">
                   <files>
                       <file>
                           <name>foobar.txt</name>
                           <content>This is file content</content>
                       </file>
                   </files>
               </payload>
           </payloads>
       </vm>
</action>
-------------------------------------------------
in the admin portal I can see my vm in "RunOnce" state, but no
floppy is
present...
In fact in the vm process command line
(ps -ef | grep qemu-kvm | grep vmname) I can't see -drive option
referring to floppy (I only see 2 "-drive" options, referring to vm
system disk and to a correctly mounted cdrom ISO)
What I'm doing wrong?
(The engine is RHEV-M version 3.4.1-0.31.el6ev)
The problem is that using non persistent payloads isn't currently
supported, so basically your "payloads" element is silently
ignored. You
have currently two alternatives:
1. Use persistent payloads:
vm = vms.get(name="myvm")
    vm.set_payloads(paylaods)
    vm.update()
    vm.start(params.Action())
You may also want to remove the payloads once the machine is
configured,
but this isn't strictly required, as Windows will not try to locate
the
sysprep floppy in subsequent boots. The only minor inconvenient is
that
the users of the VMs will see the floopy and its content attached.
Yes, this is exactly the workaround I'm currently using, and I have to
hide floppy via AD group policy (sysprep.inf contains administrator
password).
...
2. Use the builtin sysprep files (they are in
/usr/share/ovirt-engine/conf/sysprep):
vm = vms.get(name="myvm")
    initialization = params.Initialization()
    vm.set_initialization(initialization)
    vm.update()
    vm.start(params.Action())
This has the advantage that the sysprep floppy will be attached to the
VM only the first time it is booted. In subsequent boots it won't be
attached.
Great hint, I'll take a look into those syspreps to see if they fit for
my setup.
...
In 3.5 you will also be able to use sysprep support with your custom
file:
vm = vms.get(name="myvm")
   initialization = params.Initialization(
     custom_script="The text of your sysprep file"
   )
   vm.set_initialization(initialization)
   vm.update()
   vm.start(params.Action())
Good new, eventually I'll wait for RHEV 3.5
...
Note that currently (in 3.4 and in 3.5) there is an issue with the
name
of the file generated by the built-in sysprep support: it will
always be
named "sysprep.inf", regardless of the operating system assigned to
the
VM. If you want to use recent versions of Windows it has to be named
"Unattend.xml", so you will need to change the Windows template before
sealing it, adding the following registry entry:
HKEY-LOCAL-MACHINE -> SYSTEM -> Setup -> UnattendFile =
sysprep.inf
There is a bug open to avoid this:
https://bugzilla.redhat.com/1145999
Note also that the builtin sysprep support will only trigger if the VM
has been assigned a Windows operating system.
Yes, I knew. Do you know if is there a plan to change this behaviour
(e.g. generate filename according to guest O.S. standard)?
Many thanks,
Giulio
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-- 
Giulio Casella                                    giulio at di.unimi.it
System and network manager
Computer Science Dept. - University of Milano