On Mon, Feb 04, 2019 at 03:57:29PM -0800, Lianjie Cao wrote:
Hi,
I am installing OpenStack on Red Hat 7.5. For Nova compute component, I choose libvirt and Xen. However, I am running into some problems. It seems libvirt is unable to communicate with Xen.
[snip]
# virsh -c xen:/// list error: failed to connect to the hypervisor error: no connection driver available for xen:///
Then I check the connection drivers of libvirt. It seems the daemon driver for xen is missing.
Yes, that is correct. The libvirt packages shipped with RHEL do not enable the Xen driver as this is no longer a supported hypervisor for RHEL since RHEL-6 GA.
Then I decided to compile libvirt from source code. So I checked out the source code from github and tried to configure and compile it. However, from the output of ./autogen.sh --system, I don't find driver for xen is enabled. Actually, xen is not listed as driver in the output.
configure: configure: Configuration summary configure: ===================== configure: configure: Drivers configure: configure: QEMU: yes configure: OpenVZ: yes configure: VMware: yes configure: VBox: yes configure: XenAPI: no configure: libxl: yes
"libxl" is the modern Xen driver & it has been successfully enabled. Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|