agent(upstream): tell networkd to ignore eth0 in the alt run as well

Follow-up to a873032.

agent/bootstrap-alt.sh

@@ -233,6 +233,16 @@ fi
     ninja -C "$BUILD_DIR"
 ) 2>&1 | tee "$LOGDIR/build-$(uname -m).log"
 
+# Tell systemd-networkd to ignore eth0 netdev, so we can keep it up during the
+# systemd-networkd testsuite
+cat >/etc/systemd/network/10-eth0.network <<EOF
+[Match]
+Name=eth0
+
+[Link]
+Unmanaged=yes
+EOF
+
 # Reboot the machine here to switch to the latest kernel if available
 echo "-----------------------------"
 echo "- REBOOT THE MACHINE BEFORE -"

agent/bootstrap.sh

@@ -219,16 +219,6 @@ coredumpctl_set_ts
 # Install the compiled systemd
 ninja -C "$BUILD_DIR" install
 
-# Tell systemd-networkd to ignore eth0 netdev, so we can keep it up
-# during the systemd-networkd testsuite
-cat >/etc/systemd/network/10-eth0.network <<EOF
-[Match]
-Name=eth0
-
-[Link]
-Unmanaged=yes
-EOF
-
 # FIXME: drop once https://github.com/systemd/systemd/pull/27890 lands
 DRACUT_OPTS=()
 [[ -x /usr/lib/systemd/systemd-executor ]] && DRACUT_OPTS+=(--install /usr/lib/systemd/systemd-executor)
@@ -266,6 +256,16 @@ DRACUT_OPTS=()
     rm -fv "$INITRD"
 ) 2>&1 | tee "$LOGDIR/sanity-boot-check.log"
 
+# Tell systemd-networkd to ignore eth0 netdev, so we can keep it up during the
+# systemd-networkd testsuite
+cat >/etc/systemd/network/10-eth0.network <<EOF
+[Match]
+Name=eth0
+
+[Link]
+Unmanaged=yes
+EOF
+
 # The new systemd binary boots, so let's issue a daemon-reexec to use it.
 # This is necessary, since at least once we got into a situation where
 # the old systemd binary was incompatible with the unit files on disk and