[CentOS-virt] CentOS 7 Xen 4.12 libvirt/virt-manager wrong path for qemu-system-i386

Sun May 5 11:23:22 UTC 2019
Pasi Kärkkäinen <pasik at iki.fi>


While testing Virt-SIG Xen 4.12 rpms on CentOS7 I noticed the following problem with libvirt/virt-manager when manually installing a new HVM guest from virt-manager GUI.. basicly the VM installation won't start, because libvirt/virt-manager is not able to start the VM, due to "missing" qemu-system-i386 binary:

Unable to complete install: 'unsupported configuration: emulator '/usr/lib/xen/bin/qemu-system-i386' not found'

Traceback (most recent call last):
  File "/usr/share/virt-manager/virtManager/asyncjob.py", line 89, in cb_wrapper
    callback(asyncjob, *args, **kwargs)
  File "/usr/share/virt-manager/virtManager/create.py", line 2553, in _do_async_install
  File "/usr/share/virt-manager/virtinst/guest.py", line 498, in start_install
    doboot, transient)
  File "/usr/share/virt-manager/virtinst/guest.py", line 434, in _create_guest
    domain = self.conn.createXML(install_xml or final_xml, 0)
  File "/usr/lib64/python2.7/site-packages/libvirt.py", line 3725, in createXML
    if ret is None:raise libvirtError('virDomainCreateXML() failed', conn=self)
libvirtError: unsupported configuration: emulator '/usr/lib/xen/bin/qemu-system-i386' not found

Quick'n'dirty fix is to create a symlink:

	ln -s /usr/lib64/xen/bin/qemu-system-i386 /usr/lib/xen/bin/qemu-system-i386

.. after creating that symlink the VM can be started just fine and works OK.

We need to fix that default directory path for qemu-system-i386 to be correct out-of-the-box..


-- Pasi