diff --git a/pkg/hostagent/tasks/expand_root_partition.yaml b/pkg/hostagent/tasks/expand_root_partition.yaml
index 2bd38d74..5b500f8f 100644
--- a/pkg/hostagent/tasks/expand_root_partition.yaml
+++ b/pkg/hostagent/tasks/expand_root_partition.yaml
@@ -6,9 +6,9 @@
   tasks:
   - name: Get root path
     shell: |
-      ostype=$(cat /etc/os-release | grep "^ID=" | cut -d "=" -f 2)
+      . /etc/os-release
       rootpath="/dev/mapper/rl-root"
-      if [[ $ostype == '"openEuler"' ]]; then
+      if [[ $ID == 'openEuler' ]]; then
         rootpath="/dev/mapper/openeuler-root"
       fi
       echo $rootpath
@@ -28,7 +28,7 @@
     shell: pvresize /dev/vda2
   - name: Extend root
     shell: |
-      result=$(lvextend -l+100%FREE -n {{ rootpath.stdout }} 2>&1)
+      result=$(lvextend -r -l+100%FREE -n {{ rootpath.stdout }} 2>&1)
       if [[ $? == 0 ]]; then
         echo "$result"
       elif [[ $result == *'matches existing size'* ]]; then
@@ -37,5 +37,3 @@
         echo "$result"
         exit 1
       fi
-  - name: Resize root
-    shell: resize2fs {{ rootpath.stdout }}
diff --git a/templates/cluster-template.yaml b/templates/cluster-template.yaml
index 9de464e8..ed5c502e 100644
--- a/templates/cluster-template.yaml
+++ b/templates/cluster-template.yaml
@@ -104,9 +104,9 @@ spec:
       #! to the system disk through Tower API. These commands will add the new
       #! capacity of the system disk to the root partition.
       #! - |
-      #!   ostype=$(cat /etc/os-release | grep "^ID=" | cut -d "=" -f 2)
+      #!   . /etc/os-release
       #!   rootpath="/dev/mapper/rl-root"
-      #!   if [[ $ostype == '"openEuler"' ]]; then
+      #!   if [[ $ID == 'openEuler' ]]; then
       #!     rootpath="/dev/mapper/openeuler-root"
       #!   fi
       #! - |
@@ -130,7 +130,6 @@ spec:
       #!     echo "$result"
       #!     exit 1
       #!   fi
-      #! - "resize2fs $rootpath"
     useExperimentalRetryJoin: true
     files:
     - content: |
@@ -286,9 +285,9 @@ spec:
       #! to the system disk through Tower API. These commands will add the new
       #! capacity of the system disk to the root partition.
       #! - |
-      #!   ostype=$(cat /etc/os-release | grep "^ID=" | cut -d "=" -f 2)
+      #!   . /etc/os-release
       #!   rootpath="/dev/mapper/rl-root"
-      #!   if [[ $ostype == '"openEuler"' ]]; then
+      #!   if [[ $ID == 'openEuler' ]]; then
       #!     rootpath="/dev/mapper/openeuler-root"
       #!   fi
       #! - |
@@ -312,7 +311,6 @@ spec:
       #!     echo "$result"
       #!     exit 1
       #!   fi
-      #! - "resize2fs $rootpath"
 ---
 apiVersion: infrastructure.cluster.x-k8s.io/v1beta1
 kind: ElfMachineTemplate