import os
 import subprocess
 import commons
 
 install_phase = commons.PRE_INSTALL
 enabled = True
 
 def partition_disk(disk):
     partitions_data = {}
     partitions_data['disk'] = disk
     partitions_data['root'] = disk + '2'
 
     output = open(os.devnull, 'w')
 
     # Clear the disk
     process = subprocess.Popen(['sgdisk', '-o', '-g', partitions_data['disk']], stdout = output)
     retval = process.wait()
 
     # 1: grub, 2: filesystem
     process = subprocess.Popen(['sgdisk', '-n', '1::+2M', '-n', '2:', '-p', partitions_data['disk']], stdout = output)
     retval = process.wait()
 
     # Add the grub flags
     process = subprocess.Popen(['sgdisk', '-t1:ef02', partitions_data['disk']], stdout = output)
     retval = process.wait()
 
     # format the file system
     process = subprocess.Popen(['mkfs', '-t', 'ext4', partitions_data['root']], stdout = output)
     retval = process.wait()
     return partitions_data
 
 def execute(name, ks_config, config, root):
 
 	if ks_config:
 		config['disk'] = partition_disk(ks_config['disk'])