diff --git a/runners/launch_gb300-nv.sh b/runners/launch_gb300-nv.sh
index 6038c46819..3e0056d900 100644
--- a/runners/launch_gb300-nv.sh
+++ b/runners/launch_gb300-nv.sh
@@ -180,12 +180,14 @@ POWER_SRT_SLURM_PIN="6fc1bed01a0b82dae0088a105c03ce0cfb353443"
 
 if [[ "$USES_DCGM_POWER" == "1" ]]; then
     DCGM_EXPORTER_IMAGE="nvcr.io/nvidia/k8s/dcgm-exporter:4.6.0-4.8.3-distroless"
+    # enroot resolves bare paths against Docker Hub; nvcr.io pulls need the registry# form
+    DCGM_EXPORTER_ENROOT_REF="${DCGM_EXPORTER_IMAGE/nvcr.io\//nvcr.io#}"
     DCGM_EXPORTER_SQSH="/data/home/sa-shared/gharunners/squash/$(echo "$DCGM_EXPORTER_IMAGE" | sed 's/[\/:@#]/_/g').sqsh"
     # Note (wenyao): import_squash treats an existing unsquashfs-valid file
     # as a cache hit but does not re-validate a fresh import, so check
     # explicitly — on a compute node, like the import itself (login node is
     # x86, nodes aarch64).
-    import_squash "$DCGM_EXPORTER_SQSH" "$DCGM_EXPORTER_IMAGE"
+    import_squash "$DCGM_EXPORTER_SQSH" "$DCGM_EXPORTER_ENROOT_REF"
     test -r "$DCGM_EXPORTER_SQSH" || { echo "Error: DCGM exporter squash not readable: $DCGM_EXPORTER_SQSH" >&2; exit 1; }
     srun --account="$SLURM_ACCOUNT" --partition="$SLURM_PARTITION" --exclusive --time=30 bash -c "unsquashfs -l \"$DCGM_EXPORTER_SQSH\" > /dev/null" || { echo "Error: DCGM exporter squash invalid: $DCGM_EXPORTER_SQSH" >&2; exit 1; }
     sha256sum "$DCGM_EXPORTER_SQSH" > "$GITHUB_WORKSPACE/exporter-image.sha256"
diff --git a/runners/launch_h200-dgxc-slurm.sh b/runners/launch_h200-dgxc-slurm.sh
index da510b8177..6a91509ff9 100755
--- a/runners/launch_h200-dgxc-slurm.sh
+++ b/runners/launch_h200-dgxc-slurm.sh
@@ -207,6 +207,8 @@ if [[ "$IS_MULTINODE" == "true" ]]; then
 
     if [[ "$USES_DCGM_POWER" == "1" ]]; then
         DCGM_EXPORTER_IMAGE="nvcr.io/nvidia/k8s/dcgm-exporter:4.6.0-4.8.3-distroless"
+        # enroot resolves bare paths against Docker Hub; nvcr.io pulls need the registry# form
+        DCGM_EXPORTER_ENROOT_REF="${DCGM_EXPORTER_IMAGE/nvcr.io\//nvcr.io#}"
         DCGM_EXPORTER_SQSH="/data/gharunners/containers/$(echo "$DCGM_EXPORTER_IMAGE" | sed 's/[\/:@#]/_/g').sqsh"
         if ! unsquashfs -l "$DCGM_EXPORTER_SQSH" >/dev/null 2>&1; then
             DCGM_EXPORTER_LOCK="${DCGM_EXPORTER_SQSH}.lock"
@@ -223,7 +225,7 @@ if [[ "$IS_MULTINODE" == "true" ]]; then
                     rm -f \"$DCGM_EXPORTER_SQSH\"
                     export ENROOT_CACHE_PATH=\${HOME}/.cache/enroot
                     mkdir -p \"\$ENROOT_CACHE_PATH\"
-                    enroot import -o \"$DCGM_EXPORTER_SQSH\" docker://$DCGM_EXPORTER_IMAGE
+                    enroot import -o \"$DCGM_EXPORTER_SQSH\" \"docker://$DCGM_EXPORTER_ENROOT_REF\"
                 "
         fi
         test -r "$DCGM_EXPORTER_SQSH" || { echo "Error: DCGM exporter squash is not readable: $DCGM_EXPORTER_SQSH" >&2; exit 1; }
diff --git a/utils/test_gb200_power_official_contract.py b/utils/test_gb200_power_official_contract.py
index 32bfddc4ed..4b43eeb50b 100644
--- a/utils/test_gb200_power_official_contract.py
+++ b/utils/test_gb200_power_official_contract.py
@@ -87,7 +87,6 @@ def assert_pinned_clone_contract(launcher):
 
 def assert_exporter_provisioning(launcher):
     assert f'DCGM_EXPORTER_IMAGE="{EXPORTER_IMAGE}"' in launcher
-    assert 'import_squash "$DCGM_EXPORTER_SQSH" "$DCGM_EXPORTER_IMAGE"' in launcher
     assert 'test -r "$DCGM_EXPORTER_SQSH"' in launcher
     assert (
         'sha256sum "$DCGM_EXPORTER_SQSH" > "$GITHUB_WORKSPACE/exporter-image.sha256"'
@@ -130,6 +129,11 @@ def test_launcher_detects_power_lane_from_recipe():
 def test_launcher_provisions_exporter_through_squash_dir_cache():
     launcher = GB200_LAUNCHER.read_text()
     assert_exporter_provisioning(launcher)
+    # import_squash routes through enroot_uri_for_image, which already emits
+    # the registry# form for nvcr.io refs — pass the plain image, not a
+    # pre-converted ref, or the helper double-parses it.
+    assert 'import_squash "$DCGM_EXPORTER_SQSH" "$DCGM_EXPORTER_IMAGE"' in launcher
+    assert 'enroot_uri=$(enroot_uri_for_image "$image")' in launcher
     assert 'DCGM_EXPORTER_SQSH="${SQUASH_DIR}/' in launcher
     assert 'unsquashfs -l "$DCGM_EXPORTER_SQSH"' in launcher
 
diff --git a/utils/test_gb300_power_official_contract.py b/utils/test_gb300_power_official_contract.py
index a645afca94..25bfff145a 100644
--- a/utils/test_gb300_power_official_contract.py
+++ b/utils/test_gb300_power_official_contract.py
@@ -187,6 +187,14 @@ def test_launcher_detects_power_lane_from_recipe():
 def test_launcher_provisions_exporter_through_shared_squash_path():
     launcher = LAUNCHER_PATH.read_text()
     assert_exporter_provisioning(launcher)
+    # This import_squash passes docker://$image straight to enroot, which
+    # resolves bare paths against Docker Hub — the nvcr.io pull needs the
+    # pre-converted registry# ref.
+    assert (
+        'DCGM_EXPORTER_ENROOT_REF="${DCGM_EXPORTER_IMAGE/nvcr.io\\//nvcr.io#}"'
+        in launcher
+    )
+    assert 'import_squash "$DCGM_EXPORTER_SQSH" "$DCGM_EXPORTER_ENROOT_REF"' in launcher
     # No SQUASH_DIR var here; the /data/ mount avoids the /home NFS ELOOP bug.
     assert 'DCGM_EXPORTER_SQSH="/data/home/sa-shared/gharunners/squash/' in launcher
     assert 'srun --account="$SLURM_ACCOUNT" --partition="$SLURM_PARTITION" --exclusive --time=180' in launcher