diff --git a/.github/ci/spack-envs/clang14_py311_nompi_h5_ad2/spack.yaml b/.github/ci/spack-envs/clang14_py311_nompi_h5_ad2/spack.yaml
index 06e9d1ac40..08bbe79f00 100644
--- a/.github/ci/spack-envs/clang14_py311_nompi_h5_ad2/spack.yaml
+++ b/.github/ci/spack-envs/clang14_py311_nompi_h5_ad2/spack.yaml
@@ -13,7 +13,7 @@ spack:
     hdf5:
       variants: ~mpi
     adios2:
-      variants: ~mpi ~zfp ~sz ~png ~dataman ~python ~fortran ~ssc ~shared ~bzip2
+      variants: ~mpi ~zfp ~sz ~png ~dataman ~python ~fortran ~ssc ~shared ~bzip2 ~mgard
     cmake:
       externals:
       - spec: cmake@3.22.1
diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index faad7cd9e0..4c3d936a55 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -63,6 +63,7 @@ jobs:
         mpiexec --version
         perl --version
         python --version
+        sudo ln -s "$(which cmake)" /usr/bin/cmake
         eval $(spack env activate --sh .github/ci/spack-envs/clang7_nopy_ompi_h5_ad2_libcpp/)
         spack install
 
@@ -99,6 +100,7 @@ jobs:
     - name: Build
       env: {CC: clang-7, CXX: clang++-7, CXXFLAGS: -Werror}
       run: |
+        sudo ln -s "$(which cmake)" /usr/bin/cmake
         eval $(spack env activate --sh .github/ci/spack-envs/clang7_nopy_ompi_h5_ad2/)
         spack install
 
@@ -184,6 +186,7 @@ jobs:
         mpiexec --version
         perl --version
         python --version
+        sudo ln -s "$(which cmake)" /usr/bin/cmake
         eval $(spack env activate --sh .github/ci/spack-envs/clang8_py38_mpich_h5_ad2/)
         spack install
 
@@ -235,6 +238,7 @@ jobs:
     - name: Build
       env: {CC: gcc-7, CXX: g++-7, CXXFLAGS: -Werror}
       run: |
+        sudo ln -s "$(which cmake)" /usr/bin/cmake
         eval $(spack env activate --sh .github/ci/spack-envs/gcc7_py36_ompi_h5_ad2/)
         spack install
 
diff --git a/.github/workflows/tooling.yml b/.github/workflows/tooling.yml
index 03d5070d86..4f4ed5e377 100644
--- a/.github/workflows/tooling.yml
+++ b/.github/workflows/tooling.yml
@@ -24,6 +24,7 @@ jobs:
     - name: Build
       env: {CC: clang, CXX: clang++}
       run: |
+        sudo ln -s "$(which cmake)" /usr/bin/cmake
         eval $(spack env activate --sh .github/ci/spack-envs/clangtidy_nopy_ompi_h5_ad2/)
         spack install
 
@@ -54,6 +55,7 @@ jobs:
     - name: Build
       env: {CC: mpicc, CXX: mpic++, OMPI_CC: clang-10, OMPI_CXX: clang++-10, CXXFLAGS: -Werror, OPENPMD_HDF5_CHUNKS: none, OPENPMD_TEST_NFILES_MAX: 100}
       run: |
+        sudo ln -s "$(which cmake)" /usr/bin/cmake
         eval $(spack env activate --sh .github/ci/spack-envs/clangtidy_nopy_ompi_h5_ad2/)
         spack install
         SOURCEPATH="$(pwd)"