diff --git a/.github/workflows/test_eessi_container_script.yml b/.github/workflows/test_eessi_container_script.yml
index c8c2aef47e..0920678c24 100644
--- a/.github/workflows/test_eessi_container_script.yml
+++ b/.github/workflows/test_eessi_container_script.yml
@@ -25,6 +25,11 @@ jobs:
           run: |
             ./install_apptainer_ubuntu.sh
 
+        - name: Collect info on test environment
+          run: |
+              mount
+              df -h
+
         - name: Test eessi_container.sh script
           run: |
               test_cmd="cat /etc/os-release"
@@ -39,13 +44,13 @@ jobs:
                 echo "${test_cmd}" > test_script.sh
                 chmod u+x test_script.sh
                 export SINGULARITY_BIND="$PWD:/test"
-                ./eessi_container.sh --mode run /test/test_script.sh | tee ${outfile}
+                ./eessi_container.sh --verbose --mode run /test/test_script.sh | tee ${outfile}
                 grep "${out_pattern}" ${outfile}
 
               # test use of --mode shell
               elif [[ ${{matrix.SCRIPT_TEST}} == 'shell' ]]; then
                 outfile=out_shell.txt
-                ./eessi_container.sh --mode shell <<< "${test_cmd}" 2>&1 | tee ${outfile}
+                ./eessi_container.sh --verbose --mode shell <<< "${test_cmd}" 2>&1 | tee ${outfile}
                 grep "${out_pattern}" ${outfile}
 
               # test use of --container option, using a totally different container;
@@ -53,7 +58,7 @@ jobs:
               elif [[ ${{matrix.SCRIPT_TEST}} == 'container' ]]; then
                 outfile=out_container.txt
                 container="docker://ghcr.io/eessi/build-node:debian10"
-                ./eessi_container.sh --container ${container} --mode shell <<< "${test_cmd}" 2>&1 | tee ${outfile}
+                ./eessi_container.sh --verbose --container ${container} --mode shell <<< "${test_cmd}" 2>&1 | tee ${outfile}
                 grep "Debian GNU/Linux 10" ${outfile}
 
               # test use of '--access rw' to get write access in container
@@ -63,22 +68,22 @@ jobs:
                 echo "touch /cvmfs/pilot.eessi-hpc.org/${fn}" > test_script.sh
                 chmod u+x test_script.sh
                 export SINGULARITY_BIND="$PWD:/test"
-                ./eessi_container.sh --access rw --mode run /test/test_script.sh > ${outfile}
+                ./eessi_container.sh --verbose --access rw --mode run /test/test_script.sh > ${outfile}
 
                 tmpdir=$(grep "\-\-resume" ${outfile} | sed "s/.*--resume \([^']*\).*/\1/g")
                 # note: must use '--access rw' again here, since touched file is in overlay upper dir
-                ./eessi_container.sh --resume ${tmpdir} --access rw --mode shell <<< "ls -l /cvmfs/pilot.eessi-hpc.org/${fn}" > ${outfile}
+                ./eessi_container.sh --verbose --resume ${tmpdir} --access rw --mode shell <<< "ls -l /cvmfs/pilot.eessi-hpc.org/${fn}" > ${outfile}
                 grep "/cvmfs/pilot.eessi-hpc.org/${fn}$" $outfile
 
               # test use of --resume
               elif [[ ${{matrix.SCRIPT_TEST}} == 'resume' ]]; then
                 outfile=out_resume.txt
-                ./eessi_container.sh --mode shell <<< "${test_cmd}" > ${outfile}
+                ./eessi_container.sh --verbose --mode shell <<< "${test_cmd}" > ${outfile}
 
                 tmpdir=$(grep "\-\-resume" ${outfile} | sed "s/.*--resume \([^']*\).*/\1/g")
                 rm -f ${outfile}
 
-                ./eessi_container.sh --resume ${tmpdir} --mode shell <<< "${test_cmd}" > ${outfile}
+                ./eessi_container.sh --verbose --resume ${tmpdir} --mode shell <<< "${test_cmd}" > ${outfile}
                 cat ${outfile}
                 grep "Resuming from previous run using temporary storage at ${tmpdir}" ${outfile}
                 grep "${out_pattern}" ${outfile}
@@ -88,10 +93,10 @@ jobs:
                 outfile=out_save.txt
                 fn="test_${RANDOM}.txt"
                 test_cmd="touch /cvmfs/pilot.eessi-hpc.org/${fn}"
-                ./eessi_container.sh --mode shell --access rw --save test-save.tar <<< "${test_cmd}" 2>&1 | tee ${outfile}
+                ./eessi_container.sh --verbose --mode shell --access rw --save test-save.tar <<< "${test_cmd}" 2>&1 | tee ${outfile}
                 rm -f ${outfile}
 
-                ./eessi_container.sh --mode shell --access rw --resume test-save.tar <<< "ls -l /cvmfs/pilot.eessi-hpc.org/${fn}" > ${outfile}
+                ./eessi_container.sh --verbose --mode shell --access rw --resume test-save.tar <<< "ls -l /cvmfs/pilot.eessi-hpc.org/${fn}" > ${outfile}
                 grep "/cvmfs/pilot.eessi-hpc.org/${fn}$" $outfile
 
                 tar tfv test-save.tar | grep "overlay-upper/${fn}"