You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
106 lines
3.7 KiB
Python
106 lines
3.7 KiB
Python
#!/usr/bin/python2.7
|
|
# -*- coding: utf-8 -*-
|
|
# Name: persistence.py
|
|
# Purpose: Module to deal with persistence of a selected distro.
|
|
# Authors: Sundar
|
|
# Licence: This file is a part of multibootusb package. You can redistribute it or modify
|
|
# under the terms of GNU General Public License, v.2 or above
|
|
|
|
import sys
|
|
import os
|
|
import platform
|
|
import tarfile
|
|
import subprocess
|
|
from . import usb
|
|
from . import iso
|
|
from . import gen
|
|
from . import config
|
|
|
|
|
|
def persistence_distro(distro, usb_disk, iso_link):
|
|
"""
|
|
Function to detect if distro can have persistence option.
|
|
:param distro: Detected distro name.
|
|
:return: Distro name as string or None otherwise.
|
|
"""
|
|
iso_size = iso.iso_size(iso_link)
|
|
fat_max_size = (4096 * 1024 * 1024)
|
|
usb_details = usb.details(usb_disk)
|
|
usb_sf = usb_details['file_system']
|
|
usb_free_size = usb_details['size_free']
|
|
if usb_sf == 'vfat' or 'FAT32':
|
|
if usb_free_size > fat_max_size:
|
|
_max_size = fat_max_size
|
|
else:
|
|
_max_size = usb_free_size
|
|
else:
|
|
_max_size = usb_free_size
|
|
if distro == "ubuntu":
|
|
print("Persistence option is available.")
|
|
return "ubuntu", _max_size
|
|
elif distro == "debian" or distro == "debian-install":
|
|
print("Persistence option is available.")
|
|
return "debian", _max_size
|
|
else:
|
|
return None, None
|
|
# FIXME to get debian and fedora persistence workable...
|
|
# Able to add successfully but unable to keep persistence data.
|
|
|
|
|
|
|
|
'''
|
|
elif distro == "fedora":
|
|
print "Persistence option is available."
|
|
return "fedora"
|
|
'''
|
|
|
|
|
|
def create_persistence():
|
|
if config.distro == "ubuntu":
|
|
fs_name = 'casper-rw'
|
|
elif config.distro == 'debian' or config.distro == "debian-install":
|
|
fs_name = 'live-rw'
|
|
|
|
persistence = config.persistence / 1024 / 1024
|
|
|
|
if platform.system() == 'Linux':
|
|
mkfs = 'mkfs.ext3'
|
|
dd = 'dd'
|
|
persistence_mkfs_cmd = mkfs + ' -F ' + os.path.join(config.usb_mount, 'multibootusb',
|
|
iso.iso_basename(config.iso_link),
|
|
fs_name)
|
|
elif platform.system() == 'Windows':
|
|
mkfs = gen.quote(gen.resource_path(os.path.join("data", "tools", "mkfs", "mke2fs.exe")))
|
|
dd = gen.quote(gen.resource_path(os.path.join("data", "tools", "dd", "dd.exe")))
|
|
persistence_mkfs_cmd = 'echo y|' + mkfs + ' -b 1024 -L ' + fs_name + ' ' + os.path.join(config.usb_mount, 'multibootusb',
|
|
iso.iso_basename(config.iso_link), fs_name)
|
|
|
|
persistence_dd_cmd = dd + ' if=/dev/zero ' \
|
|
'of=' + os.path.join(config.usb_mount, 'multibootusb',
|
|
iso.iso_basename(config.iso_link), fs_name) +\
|
|
' bs=1M count=' + str(int(persistence))
|
|
|
|
print('Executing ==>', persistence_dd_cmd)
|
|
config.status_text = 'Creating persistence file...'
|
|
|
|
if subprocess.call(persistence_dd_cmd, shell=True) == 0:
|
|
print("\nSuccessfully created persistence file...\n")
|
|
|
|
print('Executing ==>', persistence_mkfs_cmd)
|
|
config.status_text = 'Applying filesystem to persistence file...'
|
|
if subprocess.call(persistence_mkfs_cmd, shell=True) == 0:
|
|
print("\nSuccessfully applied filesystem...\n")
|
|
|
|
|
|
def extract_file(file_path, install_dir):
|
|
"""
|
|
Function to extract persistence files to distro install directory.
|
|
:param file_path: Path to persistence file.
|
|
:param install_dir: Path to distro install directory.
|
|
:return:
|
|
"""
|
|
tar = tarfile.open(file_path, "r:bz2")
|
|
tar.extractall(install_dir)
|
|
tar.close()
|
|
|