Hi!

What do you mean under "removing values"?  You want <kernel>, <initrd> etc. not to appear in engine response? There is no such thing. There is always some value, empty or non-empty.

Shmuel

On Tue, Apr 12, 2016 at 6:40 PM, Fabrice Bacchella <fabrice.bacchella@orange.fr> wrote:

I'm trying to change the way a VM is booted, I want an initial setup with kernel, initrd and cmdline given and later removed.

Using the GUI it works fine.

But I have no success using the python API. And running with debug enable, I get this strange result :

> PUT /api/vms/8ced0f81-03fd-415b-a8ef-60141de7eeca HTTP/1.1
...
> <os type="rhel_7x64">
> <boot dev="hd"/>
> <boot dev="network"/>
> </os>
...
< <os type="rhel_7x64">
< <boot dev="hd"/>
< <boot dev="network"/>
< <kernel>.../vmlinuz</kernel>
< <initrd>.../initrd.img</initrd>
< <cmdline>....</cmdline>
< </os>

I got this with:
os_params =  params.OperatingSystem()
os_params.set_boot(old_os_params.get_boot())
os_params.set_type(old_os_params.get_type())
os_params.set_kernel(None)
os_params.set_initrd(None)
os_params.set_cmdline(None)
self.broker.set_os(os_params)
self.broker.update()
trying to set kernel and others to empty string is not really better:
> <os type="rhel_7x64">
> <boot dev="hd"/>
> <boot dev="network"/>
> <kernel></kernel>
> <initrd></initrd>
> <cmdline></cmdline>
> </os>
...
< <os type="rhel_7x64">
< <boot dev="hd"/>
< <boot dev="network"/>
< <kernel></kernel>
< <initrd></initrd>
< <cmdline></cmdline>
< </os>

What kind of "magic values" the engine uses to removes values ?
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