Ironic-boot-kernel-parameters

1. !/usr/bin/env python

import os

grub_file = '/etc/default/grub' kernel_parameters = ['quiet', 'splash'] grub_cmd = 'GRUB_CMDLINE_LINUX' old_grub_file = grub_file+'~' os.rename(grub_file, old_grub_file) cmdline_existed = False with open(grub_file, 'w') as writer, \

       open(old_grub_file, 'r') as reader:
       for line in reader:
           key = line.split('=')[0]
           if key == grub_cmd:
               #If there is already some value:
               if line.strip()[-1] == '"':
                   line = line.strip()[:-1] + ' ' + ' '.join(kernel_parameters) + '"'
               cmdline_existed = True
           writer.write(line)
       if not cmdline_existed:
           line = grub_cmd + '=' + '"' + ' '.join(kernel_parameters) + '"'
           writer.write(line)

os.remove(old_grub_file) os.system('update-grub') os.system('reboot')