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 a9e14d023..27e5cdd47 100644
--- a/xCAT-test/autotest/testcase/installation/reg_linux_diskfull_installation_flat
+++ b/xCAT-test/autotest/testcase/installation/reg_linux_diskfull_installation_flat
@@ -1,6 +1,8 @@
 start:reg_linux_diskfull_installation_flat
 os:Linux
 
+cmd:if ping -c 1 $$SN > /dev/null;then rpower $$SN off > /dev/null;fi
+
 cmd:chdef -t node -o $$CN servicenode= monserver=$$MN nfsserver=$$MN tftpserver=$$MN  xcatmaster=$$MN
 check:rc==0
 
diff --git a/xCAT-test/autotest/testcase/installation/reg_linux_statelite_installation_hierarchy b/xCAT-test/autotest/testcase/installation/reg_linux_statelite_installation_hierarchy
index 587093404..06a5f66f1 100644
--- a/xCAT-test/autotest/testcase/installation/reg_linux_statelite_installation_hierarchy
+++ b/xCAT-test/autotest/testcase/installation/reg_linux_statelite_installation_hierarchy
@@ -1,6 +1,8 @@
 start:reg_linux_statelite_installation_hierarchy
 os:Linux
 
+cmd:MNIP=`cat /etc/hosts|grep $$MN|awk '{print $1}'`;sed -i "s:nameserver .*:nameserver $MNIP:g" /etc/resolv.conf 
+
 cmd:chdef -t node -o $$CN servicenode=$$SN monserver=$$SN nfsserver=$$SN tftpserver=$$SN  xcatmaster=$$SN
 check:rc==0
 cmd:chdef -t node $$SN groups=service,all