diff --git a/xCAT-server/share/xcat/install/ubuntu/compute.tmpl b/xCAT-server/share/xcat/install/ubuntu/compute.tmpl
index ac94520da..816e94ba0 100644
--- a/xCAT-server/share/xcat/install/ubuntu/compute.tmpl
+++ b/xCAT-server/share/xcat/install/ubuntu/compute.tmpl
@@ -38,25 +38,8 @@ d-i partman-auto/disk string /dev/sda
 d-i partman-lvm/device_remove_lvm boolean true
 d-i partman-md/device_remove_md boolean true
 
-# 100M /boot
-# 4G swap 
-# / rest
-d-i partman-auto/expert_recipe string                         \
-      boot-root ::                                            \
-              100 50 100 ext3                                   \
-                      $primary{ } $bootable{ }                \
-                      method{ format } format{ }              \
-                      use_filesystem{ } filesystem{ ext3 }    \
-                      mountpoint{ /boot }                     \
-              .                                               \
-              500 10000 1000000000 ext3                       \
-                      method{ format } format{ }              \
-                      use_filesystem{ } filesystem{ ext3 }    \
-                      mountpoint{ / }                         \
-              .                                               \
-              4096 512 300% linux-swap                        \
-                      method{ swap } format{ }                \
-              .
+#create the /tmp/partitioning based on the uefi or legacy bios 
+d-i partman-auto/expert_recipe_file string /tmp/partitioning
 
 # This makes partman automatically partition without confirmation, provided
 # that you told it what to do using one of the methods above.