diff --git a/xCAT-test/autotest/testcase/packimg/cases0 b/xCAT-test/autotest/testcase/packimg/cases0
index 3d9741b7c..d53237080 100644
--- a/xCAT-test/autotest/testcase/packimg/cases0
+++ b/xCAT-test/autotest/testcase/packimg/cases0
@@ -1,19 +1,35 @@
 start:packimage_o_p_a_m
+os:Linux
 description:
 cmd:copycds $$ISO
-cmd:$$NETBOOTDIR/genimage -i __GETNODEATTR($$CN,installnic)__ -n $$NETDRIVER -o __GETNODEATTR($$CN,os)__ -p compute
+cmd:genimage -i __GETNODEATTR($$CN,installnic)__ -n $$NETDRIVER -o __GETNODEATTR($$CN,os)__ -p compute
 check:rc==0
 cmd:ls -l /install/netboot/__GETNODEATTR($$CN,os)__/__GETNODEATTR($$CN,arch)__/compute/rootimg
 check:rc==0
-cmd:packimage -o __GETNODEATTR($$CN,os)__ -p compute -a __GETNODEATTR($$CN,arch)__ -m $$PACKMETHOD
+cmd:packimage -o __GETNODEATTR($$CN,os)__ -p compute -a __GETNODEATTR($$CN,arch)__ -m cpio
 check:rc==0
 cmd:ls -l /install/netboot/__GETNODEATTR($$CN,os)__/__GETNODEATTR($$CN,arch)__/compute/rootimg.gz
 check:rc==0
 end
 
+start:packimage_p_a_o
+os:Linux
+cmd:genimage -i __GETNODEATTR($$CN,installnic)__ -n $$NETDRIVER -o __GETNODEATTR($$CN,os)__ -p compute
+check:rc==0
+cmd:ls -l /install/netboot/__GETNODEATTR($$CN,os)__/__GETNODEATTR($$CN,arch)__/compute/rootimg
+check:rc==0
+cmd:packimage -p compute -a __GETNODEATTR($$CN,arch)__ -o __GETNODEATTR($$CN,os)__
+check:rc==0
+cmd:ls -l /install/netboot/__GETNODEATTR($$CN,os)__/__GETNODEATTR($$CN,arch)__/compute/rootimg.gz
+check:rc==0
+end
+
+
+
 start:packimage_imagename
+os:Linux
 description:
-cmd:$$NETBOOTDIR/genimage -i __GETNODEATTR($$CN,installnic)__ -n $$NETDRIVER -o __GETNODEATTR($$CN,os)__ -p compute
+cmd:genimage -i __GETNODEATTR($$CN,installnic)__ -n $$NETDRIVER -o __GETNODEATTR($$CN,os)__ -p compute
 check:rc==0
 cmd:ls -l /install/netboot/__GETNODEATTR($$CN,os)__/__GETNODEATTR($$CN,arch)__/compute/rootimg
 check:rc==0
@@ -26,16 +42,17 @@ end
 
 
 start:packimage_h
-description:packimage -h 
+os:Linux
+description:packimage -h
 cmd:packimage -h
-check:output=~Usage
+check:rc==0
 end
 
 
 start:packimage_v
-description:packimage -v 
+os:Linux
+description:packimage -v
 cmd:packimage -v
 check:output=~version|Version
 end
 
-