diff --git a/.github/workflows/30min-iiab-test-install-raspios.yml b/.github/workflows/30min-iiab-test-install-raspios.yml
index dea22ffa6..ea89758ed 100644
--- a/.github/workflows/30min-iiab-test-install-raspios.yml
+++ b/.github/workflows/30min-iiab-test-install-raspios.yml
@@ -42,7 +42,14 @@ jobs:
     steps:
       #- run: echo "🎉 The job was automatically triggered by a ${{ github.event_name }} event."
       #- run: echo "🔎 The name of your branch is ${{ github.ref }} and your repository is ${{ github.repository }}."
-      #- name: Check out repository code
+      #- name: Dump GitHub context (typically almost 500 lines)
+      #  env:
+      #    GITHUB_CONTEXT: ${{ toJSON(github) }}
+      #  run: echo "$GITHUB_CONTEXT"
+      - name: Dump matrix context
+        env:
+          MATRIX_CONTEXT: ${{ toJSON(matrix) }}
+        run: echo "$MATRIX_CONTEXT"
       - uses: actions/checkout@v3.1.0
       - uses: pguyot/arm-runner-action@v2
         with:
@@ -52,11 +59,12 @@ jobs:
           cpu_info: ${{ matrix.cpu_info }}
           copy_repository_path: /opt/iiab/iiab
           commands: |
+              echo "🍏 This job's status is ${{ job.status }}."
               #test `uname -m` = ${{ matrix.arch }}
               grep Model /proc/cpuinfo
-              echo "🍏 This job's status is ${{ job.status }}."
-              whoami    # runner
-              pwd       # /home/runner/work/iiab/iiab == $GITHUB_WORKSPACE == ${{ github.workspace }}
+              uname -a    # uname -srm
+              whoami      # Typically 'root' instead of 'runner'
+              pwd         # /home/runner/work/iiab/iiab == $GITHUB_WORKSPACE == ${{ github.workspace }}
               sudo apt-get update -y --allow-releaseinfo-change
               sudo apt-get install --no-install-recommends -y git
               ls /opt/iiab/iiab