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How to use boot_once_yaboot method in autotest

Best Python code snippet using autotest_python

boottool.py

Source:boottool.py

...1307            return self.boot_once_grub(entry_index)1308        elif bootloader == 'grub2':1309            return self.boot_once_grub2(entry_index)1310        elif bootloader == 'yaboot':1311            return self.boot_once_yaboot(title)1312        elif bootloader == 'elilo':1313            return self.boot_once_elilo(entry_index)1314        else:1315            self.log.error("Detected bootloader does not implement boot once")1316            return -11317    def boot_once_grub(self, entry_index):1318        '''1319        Implements the boot once feature for the grub bootloader1320        '''1321        # grubonce is a hack present in distros like OpenSUSE1322        grubonce_cmd = find_executable('grubonce')1323        if grubonce_cmd is None:1324            # XXX: check the type of default set (numeric or "saved")1325            grub_instructions = ['savedefault --default=%s --once' %1326                                 entry_index, 'quit']1327            grub_instructions_text = '\n'.join(grub_instructions)1328            grub_binary = find_executable('grub')1329            if grub_binary is None:1330                self.log.error("Could not find the 'grub' binary, aborting")1331                return -11332            p = subprocess.Popen([grub_binary, '--batch'],1333                                 stdin=subprocess.PIPE,1334                                 stdout=subprocess.PIPE,1335                                 stderr=subprocess.PIPE)1336            out, err = p.communicate(grub_instructions_text)1337            complete_out = ''1338            if out is not None:1339                complete_out = out1340            if err is not None:1341                complete_out += "\n%s" % err1342            grub_batch_err = []1343            if complete_out:1344                for l in complete_out.splitlines():1345                    if re.search('error', l, re.IGNORECASE):1346                        grub_batch_err.append(l)1347                if grub_batch_err:1348                    self.log.error("Error while running grub to set boot "1349                                   "once: %s", "\n".join(grub_batch_err))1350                    return -11351            self.log.debug('No error detected while running grub to set boot '1352                           'once')1353            return 01354        else:1355            rc = self._run_get_return([grubonce_cmd, str(entry_index)])1356            if rc:1357                self.log.error('Error running %s', grubonce_cmd)1358            else:1359                self.log.debug('No error detected while running %s',1360                               grubonce_cmd)1361            return rc1362    def boot_once_grub2(self, entry_index):1363        '''1364        Implements the boot once feature for the grub2 bootloader1365        Caveat: this assumes the default set is of type "saved", and not a1366        numeric value.1367        '''1368        default_index_re = re.compile('\s*set\s+default\s*=\s*\"+(\d+)\"+')1369        grub_reboot_names = ['grub-reboot', 'grub2-reboot']1370        grub_reboot_exec = None1371        for grub_reboot in grub_reboot_names:1372            grub_reboot_exec = find_executable(grub_reboot)1373            if grub_reboot_exec is not None:1374                break1375        if grub_reboot_exec is None:1376            self.log.error('Could not find executable among searched names: '1377                           '%s', ' ,'.join(grub_reboot_names))1378            return -11379        grub_set_default_names = ['grub-set-default', 'grub2-set-default']1380        grub_set_default_exec = None1381        for grub_set_default in grub_set_default_names:1382            grub_set_default_exec = find_executable(grub_set_default)1383            if grub_set_default_exec is not None:1384                break1385        if grub_set_default_exec is None:1386            self.log.error('Could not find executable among searched names: '1387                           '%s', ' ,'.join(grub_set_default_names))1388            return -11389        # Make sure the "set default" entry in the configuration file is set1390        # to "${saved_entry}. Assuming the config file is at /boot/grub/grub.cfg1391        deb_grub_cfg_path = '/boot/grub/grub.cfg'1392        if self._dist_uses_grub2():1393            deb_grub_cfg_path = '/boot/grub2/grub.cfg'1394        deb_grub_cfg_bkp_path = '%s.boottool.bak' % deb_grub_cfg_path1395        default_index = None1396        if os.path.exists(deb_grub_cfg_path):1397            shutil.move(deb_grub_cfg_path, deb_grub_cfg_bkp_path)1398            o = open(deb_grub_cfg_path, 'w')1399            for l in open(deb_grub_cfg_bkp_path).readlines():1400                m = default_index_re.match(l)1401                if m is not None:1402                    default_index = int(m.groups()[0])1403                    o.write('set default="${saved_entry}"\n')1404                else:1405                    o.write(l)1406            o.close()1407        # Make the current default entry the "previous saved entry"1408        if default_index is None:1409            default_index = self.get_default_index()1410        else:1411            # grubby adds entries to top. this assumes a new entry to boot once1412            # has already been added to the top, so fallback to the second1413            # entry (index 1) if the boot once entry fails to boot1414            if entry_index == 0:1415                default_index = 11416            else:1417                default_index = 01418        # A negative index is never acceptable1419        if default_index >= 0:1420            prev_saved_return = self._run_get_return([grub_set_default_exec,1421                                                      '%s' % default_index])1422            if prev_saved_return != 0:1423                self.log.error('Could not make entry %s the previous saved entry',1424                               default_index)1425                return prev_saved_return1426        # Finally set the boot once entry1427        return self._run_get_return([grub_reboot_exec,1428                                     '%s' % entry_index])1429    def boot_once_yaboot(self, entry_title):1430        '''1431        Implements the boot once feature for the yaboot bootloader1432        '''1433        nvsetenv_cmd = find_executable('nvsetenv')1434        if nvsetenv_cmd is None:1435            self.log.error("Could not find nvsetenv in PATH")1436            return -11437        return self._run_get_return([nvsetenv_cmd,1438                                     'boot-once',1439                                     entry_title])1440    def boot_once_elilo(self, entry_index):1441        '''1442        Implements boot once for machines with kernel >= 2.61443        This manipulates EFI variables via the interface available at...

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