diff --git a/xCAT-test/autotest/testcase/installation/Diskless_installation_flat_p8_le b/xCAT-test/autotest/testcase/installation/Diskless_installation_flat_p8_le
index 51d18d4ad..d20791936 100644
--- a/xCAT-test/autotest/testcase/installation/Diskless_installation_flat_p8_le
+++ b/xCAT-test/autotest/testcase/installation/Diskless_installation_flat_p8_le
@@ -1,5 +1,6 @@
 start:Diskless_installation_flat_p8_le
 os:Linux
+stop:yes
 
 cmd:copycds $$ISO
 check:rc==0
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 0800aa5d7..38ba2be6d 100644
--- a/xCAT-test/autotest/testcase/installation/reg_linux_diskfull_installation_flat
+++ b/xCAT-test/autotest/testcase/installation/reg_linux_diskfull_installation_flat
@@ -1,5 +1,6 @@
 start:reg_linux_diskfull_installation_flat
 os:Linux
+stop:yes
 
 cmd:if ping -c 1 $$SN > /dev/null;then rpower $$SN off > /dev/null;fi
 
diff --git a/xCAT-test/autotest/testcase/installation/reg_linux_diskless_installation_flat b/xCAT-test/autotest/testcase/installation/reg_linux_diskless_installation_flat
index 9b3c04e60..af633acc7 100644
--- a/xCAT-test/autotest/testcase/installation/reg_linux_diskless_installation_flat
+++ b/xCAT-test/autotest/testcase/installation/reg_linux_diskless_installation_flat
@@ -1,5 +1,6 @@
 start:reg_linux_diskless_installation_flat
 os:Linux
+stop:yes
 
 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_diskless_installation_hierarchy b/xCAT-test/autotest/testcase/installation/reg_linux_diskless_installation_hierarchy
index 219d8cda9..095d0e17f 100644
--- a/xCAT-test/autotest/testcase/installation/reg_linux_diskless_installation_hierarchy
+++ b/xCAT-test/autotest/testcase/installation/reg_linux_diskless_installation_hierarchy
@@ -1,5 +1,6 @@
 start:reg_linux_diskless_installation_hierarchy
 os:Linux
+stop:yes
 
 cmd:chdef -t node -o $$CN servicenode=$$SN monserver=$$SN nfsserver=$$SN tftpserver=$$SN  xcatmaster=$$SN
 check:rc==0
diff --git a/xCAT-test/autotest/testcase/installation/reg_linux_statelite_installation_flat b/xCAT-test/autotest/testcase/installation/reg_linux_statelite_installation_flat
index f70ef0b70..297502af2 100644
--- a/xCAT-test/autotest/testcase/installation/reg_linux_statelite_installation_flat
+++ b/xCAT-test/autotest/testcase/installation/reg_linux_statelite_installation_flat
@@ -1,5 +1,6 @@
 start:reg_linux_statelite_installation_flat
 os:Linux
+stop:yes
 
 cmd:chdef -t node -o $$CN servicenode= monserver=$$MN nfsserver=$$MN tftpserver=$$MN  xcatmaster=$$MN
 check:rc==0