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Re: [libvirt-users] with current libvirt git virsh expects vbox, refuses kvm define



On 07/27/2011 03:21 AM, Matthias Bolte wrote:
> 2011/7/27 Whit Blauvelt <whit virt transpect com>:
>>> What's the output of "# virsh -V" on your second ubuntu box? I guess
>>> your libvirt on that box might not be compiled with qemu driver.
>>
>> # virsh -V
>> Virsh command line tool of libvirt 0.9.3 ...
>>
>> Compiled with support for:
>> Â Hypervisors: QEmu/KVM UML OpenVZ VirtualBox LXC ESX Test
>> Â Networking: Remote Daemon Network Bridging Nwfilter VirtualPort
>> Â Storage: Dir Filesystem SCSI Multipath LVM
>> Â Miscellaneous: SELinux Secrets Debug Readline
>>
>>> Another possiablity is the libvirt is compiled with both qemu driver and
>>> vbox driver, but when you try to creat a new connection, vbox was the
>>> first succesfully connected one. In this case, you can try like below:
>>
>> Why? Ah, I do have a couple stray vbox processes somehow:
>>
>> root     25265  0.0  0.1  86076  4304 ?        S    19:34   0:00 /usr/lib/virtualbox/VBoxXPCOMIPCD
>> root     25274  0.0  0.1 209964  6672 ?        Sl   19:34   0:02 /usr/lib/virtualbox/VBoxSVC --pipe 4 --auto-shutdown
>>
>> But that should cause it to deny it knows how to handle Qemu/KVM?
> 
> The point is that libvirt autodetects the available hypervisors at
> runtime when you don't specify a connection URI. For example, just
> running virsh results in autodetecting VirtualBox because you have it
> installed in a way that it's still working and due to the way libvirt
> works internally VirtualBox comes before QEMU in the autodetection
> list.
> 

I think this should be changed actually. I think it's clear that there
are far more libvirt+kvm users than libvirt+vbox users, we should adjust
the driver probing to match. Unfortunately it doesn't look like a simple
change.

- Cole


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