diff --git a/xCAT-test/autotest/testcase/installation/reg_linux_diskfull_installation_flat b/xCAT-test/autotest/testcase/installation/reg_linux_diskfull_installation_flat
index 5a938f67b..5ee4a9d22 100644
--- a/xCAT-test/autotest/testcase/installation/reg_linux_diskfull_installation_flat
+++ b/xCAT-test/autotest/testcase/installation/reg_linux_diskfull_installation_flat
@@ -23,10 +23,8 @@ check:rc==0
 cmd:sleep 10
 cmd:if cat /etc/*release |grep SUSE >/dev/null;then cat /var/lib/dhcp/db/dhcpd.leases|grep $$CN;elif cat /etc/*release |grep "Red Hat" >/dev/null;then cat /var/lib/dhcpd/dhcpd.leases|grep $$CN;fi     
 check:output=~$$CN
-
-cmd:if cat /etc/*release |grep "7.2" |grep "Red Hat">/dev/null;then copycds $$ISO -n rhels7.2;else copycds $$ISO;fi
+cmd:copycds $$ISO 
 check:rc==0
-cmd:if cat /etc/*release |grep "7.2" |grep "Red Hat">/dev/null;then mkdef $$STATELITE -u profile=compute provmethod=statelite osvers=rhels7.2;else mkdef $$STATELITE -u profile=compute provmethod=statelite; fi
 cmd:nodeset $$CN osimage=__GETNODEATTR($$CN,os)__-__GETNODEATTR($$CN,arch)__-install-compute
 check:rc==0
 cmd:lsdef $$CN |grep provmethod