diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index c05c454..92071a9 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -16,8 +16,22 @@ env:
   REPORT_DIR: /tmp/build-report
 
 jobs:
-  test-action:
-    name: Test action
+  test-docker-tmp:
+    name: Test removing root-owned folder
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out Maximize Build Space action
+        uses: actions/checkout@v4
+        with:
+          path: ./.github/actions/maximize-test
+
+      - name: Maximize build space
+        uses: ./.github/actions/maximize-test
+        with:
+          build-mount-path: /var/lib/docker/tmp
+
+  determine-free-space:
+    name: Determine free space with different settings
     runs-on: ${{ matrix.os }}
 
     strategy:
@@ -117,7 +131,7 @@ jobs:
   collect-reports:
     name: Collect reports
     runs-on: ubuntu-latest
-    needs: test-action
+    needs: determine-free-space
     env:
       REPORT_FILE: space-free-report.md
 
diff --git a/action.yml b/action.yml
index c03bcbc..b956952 100644
--- a/action.yml
+++ b/action.yml
@@ -65,13 +65,13 @@ runs:
       shell: bash
       run: |
         echo "Memory and swap:"
-        free
+        sudo free
         echo
-        swapon --show
+        sudo swapon --show
         echo
 
         echo "Available storage:"
-        df -h
+        sudo df -h
         echo
 
     - name: Maximize build disk space
@@ -113,7 +113,7 @@ runs:
 
           # ensure mount path exists before the action
           sudo mkdir -p "${BUILD_MOUNT_PATH}"
-          find "${BUILD_MOUNT_PATH}" -maxdepth 0 ! -empty -exec echo 'WARNING: directory [{}] is not empty, data loss might occur. Content:' \; -exec ls -al "{}" \;
+          sudo find "${BUILD_MOUNT_PATH}" -maxdepth 0 ! -empty -exec echo 'WARNING: directory [{}] is not empty, data loss might occur. Content:' \; -exec ls -al "{}" \;
 
           echo "Removing unwanted software... "
           if [[ ${{ inputs.remove-dotnet }} == 'true' ]]; then
@@ -189,10 +189,10 @@ runs:
       shell: bash
       run: |
         echo "Memory and swap:"
-        free
+        sudo free
         echo
-        swapon --show
+        sudo swapon --show
         echo
 
         echo "Available storage:"
-        df -h
+        sudo df -h