diff --git a/.github/workflows/root-ci.yml b/.github/workflows/root-ci.yml
index 540752428518f..58193a333149c 100644
--- a/.github/workflows/root-ci.yml
+++ b/.github/workflows/root-ci.yml
@@ -111,6 +111,7 @@ jobs:
           - platform: mac-beta
             is_special: true
             arch: ARM64
+            overrides: ["gnuinstall=ON"]
 
     runs-on: # Using '[self-hosted, ..., ...]' does not work for some reason :)
       - self-hosted
@@ -405,8 +406,8 @@ jobs:
             overrides: ["runtime_cxxmodules=Off"]
           - image: alma9
             is_special: true
-            property: march_native
-            overrides: ["CMAKE_BUILD_TYPE=RelWithDebInfo", "CMAKE_CXX_FLAGS=-march=native", "CMAKE_C_FLAGS=-march=native", "builtin_zlib=ON", "builtin_zstd=ON"]
+            property: "march_native, gnuinstall"
+            overrides: ["CMAKE_BUILD_TYPE=RelWithDebInfo", "CMAKE_CXX_FLAGS=-march=native", "CMAKE_C_FLAGS=-march=native", "builtin_zlib=ON", "builtin_zstd=ON", "gnuinstall=ON"]
           - image: alma9
             is_special: true
             property: arm64
@@ -606,7 +607,7 @@ jobs:
 
       - name: CTest in post-install test project
         working-directory: ${{ env.POST_INSTALL_DIR }}
-        run: ctest -j $(nproc)
+        run: ctest --output-on-failure -j
 
   event_file:
     # For any event that is not a PR, the CI will always run. In PRs, the CI
diff --git a/roottest/root/core/CMakeLists.txt b/roottest/root/core/CMakeLists.txt
index ac6c03e515830..eaebc761dceb0 100644
--- a/roottest/root/core/CMakeLists.txt
+++ b/roottest/root/core/CMakeLists.txt
@@ -33,7 +33,10 @@ ROOTTEST_ADD_TEST(StatusBitsCheck
                   OUTREF execStatusBitsCheck.ref)
 
 add_test(NAME root_exe_exitStatus COMMAND $<TARGET_FILE:root.exe> "-e invalid" "--no_exist")
-set_property(TEST root_exe_exitStatus PROPERTY WILL_FAIL True)
+set_tests_properties(root_exe_exitStatus PROPERTIES
+	WILL_FAIL True
+	ENVIRONMENT ROOTIGNOREPREFIX=1)
 add_test(NAME root_exe_errorMessage COMMAND $<TARGET_FILE:root.exe> "-e invalid" "--no_exist")
-set_property(TEST root_exe_errorMessage PROPERTY
-             PASS_REGULAR_EXPRESSION "root: unrecognized option '-e invalid'.*--no_exist.*Try 'root --help'")
+set_tests_properties(root_exe_errorMessage PROPERTIES
+    PASS_REGULAR_EXPRESSION "root: unrecognized option '-e invalid'.*--no_exist.*Try 'root --help'"
+    ENVIRONMENT ROOTIGNOREPREFIX=1)