diff -ru a/lib/puppet/provider/package/yum.rb b/lib/puppet/provider/package/yum.rb
--- a/lib/puppet/provider/package/yum.rb	2020-03-05 20:30:49.582624408 +0800
+++ b/lib/puppet/provider/package/yum.rb	2020-03-05 21:13:39.870694454 +0800
@@ -24,6 +24,7 @@
   end
 
   defaultfor :osfamily => :redhat
+  defaultfor :operatingsystem => :"poky-stx"
 
   def self.prefetch(packages)
     raise Puppet::Error, _("The yum provider can only be used as root") if Process.euid != 0