How to use boot_once_grub2 method in autotest

Best Python code snippet using autotest_python

boottool.py

Source:boottool.py Github

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...1305 return -11306 if bootloader == 'grub':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: '...

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