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# prepboot.py
# Format class for PPC PReP Boot.
#
# Copyright (C) 2009 Red Hat, Inc.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# the GNU General Public License v.2, or (at your option) any later version.
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY expressed or implied, including the implied warranties of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details. You should have received a copy of the
# GNU General Public License along with this program; if not, write to the
# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA. Any Red Hat trademarks that are incorporated in the
# source code or documentation are not subject to the GNU General Public
# License and may only be used or replicated with the express permission of
# Red Hat, Inc.
#
# Red Hat Author(s): Dave Lehman <dlehman@redhat.com>
#
from ..errors import *
from . import DeviceFormat, register_device_format
from parted import PARTITION_PREP
import os
import logging
log = logging.getLogger("storage")
class PPCPRePBoot(DeviceFormat):
""" Generic device format. """
_type = "prepboot"
_name = "PPC PReP Boot"
_udevTypes = []
partedFlag = PARTITION_PREP
_formattable = True # can be formatted
_linuxNative = True # for clearpart
_maxSize = 10 # maximum size in MB
_minSize = 4 # minimum size in MB
def __init__(self, *args, **kwargs):
""" Create a PRePBoot instance.
Keyword Arguments:
device -- path to the underlying device
exists -- indicates whether this is an existing format
"""
DeviceFormat.__init__(self, *args, **kwargs)
def create(self, *args, **kwargs):
if self.exists:
raise FSError("PReP Boot format already exists")
DeviceFormat.create(self, *args, **kwargs)
try:
fd = os.open(self.device, os.O_RDWR)
length = os.lseek(fd, 0, os.SEEK_END)
os.lseek(fd, 0, os.SEEK_SET)
buf = '\0' * 1024 * 1024
while length > 0:
if length >= len(buf):
os.write(fd, buf)
length -= len(buf)
else:
buf = '0' * length
os.write(fd, buf)
length = 0
os.close(fd)
except OSError as e:
log.error("error zeroing out %s: %s" % (self.device, e))
if fd:
os.close(fd)
@property
def status(self):
return False
@property
def supported(self):
from pyanaconda import platform
return isinstance(platform.getPlatform(), platform.IPSeriesPPC)
register_device_format(PPCPRePBoot)
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