diff --git a/product-source/hololake-platform/guanghu-os/scripts/build-guanghu-cross-root-fixture.sh b/product-source/hololake-platform/guanghu-os/scripts/build-guanghu-cross-root-fixture.sh
index d08da9302..7bc997377 100755
--- a/product-source/hololake-platform/guanghu-os/scripts/build-guanghu-cross-root-fixture.sh
+++ b/product-source/hololake-platform/guanghu-os/scripts/build-guanghu-cross-root-fixture.sh
@@ -35,7 +35,7 @@ mkdir -p "${staging}/bin" "${staging}/sbin" "${staging}/usr/lib/guanghu" \
   "${staging}/usr/share/guanghu/repository-service-equivalence" \
   "$(dirname "${output}")"
 install -m 0755 /bin/busybox "${staging}/bin/busybox"
-for applet in sh sleep cat grep tr stat mkdir mv chmod readlink kill sync poweroff sed id httpd wget rm; do
+for applet in sh sleep cat grep tr stat mkdir mv chmod readlink kill sync poweroff sed id httpd wget rm ip; do
   ln -s busybox "${staging}/bin/${applet}"
 done
 install -m 0755 "${supervisor}" "${staging}/usr/lib/guanghu/guanghu-root-supervisor"
@@ -64,6 +64,7 @@ kill -0 "${supervisor_pid}"
 grep -Fq '"stage":"ROOT_SUPERVISOR_ACTIVE"' /run/guanghu/root-supervisor/state.json
 echo "GUANGHU_CROSS_ROOT_PERSISTENCE_VERIFIED pid=${supervisor_pid}"
 if [ -x /usr/lib/guanghu/guanghu-repository-bridge-lifecycle ]; then
+  ip link set lo up
   /usr/lib/guanghu/guanghu-repository-bridge-lifecycle run REQ-QEMU-CROSS-ROOT-001
   grep -Fq '"result":"PASS_100"' /guanghu/receipts/repository-bridge-lifecycle/REQ-QEMU-CROSS-ROOT-001.json
   grep -Fq '"final_state":"DORMANT"' /guanghu/receipts/repository-bridge-lifecycle/REQ-QEMU-CROSS-ROOT-001.json
diff --git a/product-source/hololake-platform/guanghu-os/scripts/test-cross-root-repository-service-equivalence.sh b/product-source/hololake-platform/guanghu-os/scripts/test-cross-root-repository-service-equivalence.sh
index 493825b76..8e0625c4c 100644
--- a/product-source/hololake-platform/guanghu-os/scripts/test-cross-root-repository-service-equivalence.sh
+++ b/product-source/hololake-platform/guanghu-os/scripts/test-cross-root-repository-service-equivalence.sh
@@ -11,6 +11,7 @@ sh -n "${controller}"
 grep -Fq 'httpd -f -p 127.0.0.1:39301' "${backend}"
 grep -Fq 'repository-main-readback' "${backend}"
 grep -Fq 'service reclaim failed' "${backend}"
+grep -Fq 'ip link set lo up' "${builder}"
 grep -Fq 'GUANGHU_CROSS_ROOT_REPOSITORY_SERVICE_EQUIVALENCE_VERIFIED' "${builder}"
 grep -Fq 'REQ-QEMU-CROSS-ROOT-001' "${builder}"
 grep -Fq 'final_state":"DORMANT' "${builder}"