diff --git a/.github/workflows/build-installer-iso.yml b/.github/workflows/build-installer-iso.yml
index 3c80be4..c1bb3d4 100644
--- a/.github/workflows/build-installer-iso.yml
+++ b/.github/workflows/build-installer-iso.yml
@@ -71,6 +71,9 @@ jobs:
           mkdir -p "$TMPD"
           ln -sfn "$GITHUB_WORKSPACE" /work
           ls -ld "$OUT" 2>&1 || echo "[OK] $OUT does not exist (expected)"
+          # IMPORTANT: --logfile MUST NOT live under --resultdir; livemedia
+          # pre-creates the parent before checking resultdir doesn't exist.
+          LOGFILE=/tmp/livemedia-$$.log
           livemedia-creator \
             --make-iso \
             --no-virt \
@@ -80,10 +83,11 @@ jobs:
             --volid "veilor-os-installer-${RELEASEVER}" \
             --project "veilor-os" \
             --releasever "$RELEASEVER" \
-            --logfile "$OUT/build.log" \
+            --logfile "$LOGFILE" \
             2>&1 | tee /tmp/build.log
           mkdir -p build/out
           cp -a "$OUT"/. build/out/
+          cp -a "$LOGFILE" build/out/livemedia.log 2>/dev/null || true
           cp -a /tmp/build.log build/out/build.log 2>/dev/null || true
           ls -lh build/out/