Citrix XenServer host. If you want to install Open vSwitch on a
generic Linux or BSD host, see [INSTALL.md] instead.
-These instructions have been tested with XenServer 5.6 FP1.
+Open vSwitch should work with XenServer 5.6.100 and later. However,
+Open vSwitch requires Python 2.7 or later, so using Open vSwitch with
+XenServer 6.5 or earlier requires installing Python 2.7.
+
Building Open vSwitch for XenServer
-----------------------------------
The "xen" flavor is the main running kernel flavor and the "kdump" flavor is
the crashdump kernel flavor. Commonly, one would specify "xen" here.
+For XenServer 6.5 or above, the kernel version naming no longer contains
+KERNEL_FLAVOR. In fact, only providing the `uname -r` output is enough.
+So, the final "rpmbuild" step changes to:
+
+ ```
+ KERNEL_UNAME=<`uname -r` output>
+ rpmbuild \
+ -D "kenel_uname $KERNEL_UNAME" \
+ -bb xenserver/openvswitch-xen.spec
+ ```
+
+
Installing Open vSwitch for XenServer
-------------------------------------