354         self._run('rm -f %s' % self.UPDATED_MARKER)
355         self._run('stop ui || true')
356         self._run('stop update-engine || true')
357         self._run('start update-engine')
363     def _run(self, cmd, *args, **kwargs):  member in ChromiumOSUpdater
374         return self._run('rootdev %s' % options).stdout.strip()
391         return int(self._run('cgpt show -n -i %d %s %s' % (
454         self._run(' '.join(statefuldev_cmd))
461         return self._run('/postinst %s 2>&1' % part)
485                 self._run(can_rollback_cmd)
496             self._run(rollback_cmd)
528             self._run(' '.join(statefuldev_cmd), timeout=1200)
710             self._run('cgpt show $(rootdev -s -d)')
712             self._run('crossystem --all')
723             services_status = self._run('status system-services').stdout