DEBUG:root:['mount', '-o', 'loop', '/home/ubuntu/Desktop/lucid-desktop-i386.iso', '/tmp/tmpJdWnQQ']
DEBUG:root:['mount', '-o', 'remount,rw', dbus.String(u'/dev/sdb1')]
DEBUG:root:['syslinux', '-f', dbus.String(u'/dev/sdb1')]
DEBUG:root:['dd', 'if=/usr/lib/syslinux/mbr.bin', u'of=/dev/sdb', 'bs=446', 'count=1', 'conv=sync']
DEBUG:root:['/sbin/parted', dbus.String(u'/dev/sdb', variant_level=1), 'set', '1', 'boot', 'on']
DEBUG:root:['umount', dbus.String(u'/dev/sdb1')]
DEBUG:root:['umount', dbus.String(u'/tmp/tmpJdWnQQ')]
DEBUG:root:Shutting down.