diff --git a/cloudinit/config/cc_mounts.py b/cloudinit/config/cc_mounts.py
index e83fbd8dff8..eb535520a39 100644
--- a/cloudinit/config/cc_mounts.py
+++ b/cloudinit/config/cc_mounts.py
@@ -508,6 +508,7 @@ def mount_if_needed(
         do_mount = bool(set(dirs).difference(mount_points))
 
     if do_mount:
+        util.udevadm_settle()
         subp.subp(["mount", "-a"])
         if uses_systemd:
             subp.subp(["systemctl", "daemon-reload"])
diff --git a/tests/unittests/config/test_cc_mounts.py b/tests/unittests/config/test_cc_mounts.py
index 7da080544fb..1d23f725674 100644
--- a/tests/unittests/config/test_cc_mounts.py
+++ b/tests/unittests/config/test_cc_mounts.py
@@ -298,6 +298,9 @@ def setup(self, mocker, fake_fs):
         fake_fs.create_dir("/etc")
 
         self.m_subp = mocker.patch(f"{M_PATH}subp.subp")
+        self.m_udevadm_settle = mocker.patch(
+            f"{M_PATH}util.udevadm_settle"
+        )
         self.m_mounts = mocker.patch(
             f"{M_PATH}util.mounts",
             return_value={
@@ -473,6 +476,7 @@ def test_no_change_fstab_sets_needs_mount_all(self):
         with open(cc_mounts.FSTAB_PATH, "r") as fd:
             fstab_new_content = fd.read()
             assert fstab_original_content == fstab_new_content.strip()
+        self.m_udevadm_settle.assert_called_once_with()
         self.m_subp.assert_has_calls(
             [
                 mock.call(["mount", "-a"]),