diff --git a/xCAT-test/autotest/testcase/installation/linux_diskless_installation b/xCAT-test/autotest/testcase/installation/linux_diskless_installation
index 7423585b4..757b341e6 100644
--- a/xCAT-test/autotest/testcase/installation/linux_diskless_installation
+++ b/xCAT-test/autotest/testcase/installation/linux_diskless_installation
@@ -1,4 +1,4 @@
-start:Linux_diskless_installation_flat
+start:Linux_diskless_installation_flat_ppc64
 os:Linux
 cmd:rscan __GETNODEATTR($$CN,hcp)__ -w
 check:rc==0
@@ -27,7 +27,7 @@ cmd:genimage __GETNODEATTR($$CN,os)__-__GETNODEATTR($$CN,arch)__-netboot-compute
 check:rc==0
 cmd:packimage -o __GETNODEATTR($$CN,os)__ -p compute -a __GETNODEATTR($$CN,arch)__
 check:rc==0
-cmd:nodeset $$CN netboot
+cmd:nodeset $$CN osimage=__GETNODEATTR($$CN,os)__-__GETNODEATTR($$CN,arch)__-netboot-compute
 check:rc==0
 cmd:rnetboot $$CN
 check:rc==0
@@ -37,4 +37,14 @@ check:output=~booted
 cmd:xdsh $$CN date
 check:rc==0
 check:output=~\d\d:\d\d:\d\d
+cmd:nodeset $$CN osimage
+check:rc==0
+cmd:rnetboot $$CN
+check:rc==0
+cmd:sleep 300
+cmd:lsdef -l $$CN | grep status
+check:output=~booted
+cmd:xdsh $$CN date
+check:rc==0
+check:output=~\d\d:\d\d:\d\d
 end