bootstrap-vz/base/fs/partitionmaps/gpt.py
2014-02-27 23:02:58 +01:00

52 lines
1.9 KiB
Python

from abstract import AbstractPartitionMap
from ..partitions.gpt import GPTPartition
from ..partitions.gpt_swap import GPTSwapPartition
from common.tools import log_check_call
class GPTPartitionMap(AbstractPartitionMap):
def __init__(self, data, bootloader):
from common.bytes import Bytes
self.partitions = []
def last_partition():
return self.partitions[-1] if len(self.partitions) > 0 else None
gpt_offset = Bytes('17KiB')
if bootloader == 'grub':
from ..partitions.unformatted import UnformattedPartition
self.grub_boot = UnformattedPartition(Bytes('1007KiB'), last_partition())
self.grub_boot.offset = gpt_offset
self.grub_boot.flags.append('bios_grub')
self.partitions.append(self.grub_boot)
if 'boot' in data:
self.boot = GPTPartition(Bytes(data['boot']['size']),
data['boot']['filesystem'], data['boot'].get('format_command', None),
'boot', last_partition())
self.partitions.append(self.boot)
if 'swap' in data:
self.swap = GPTSwapPartition(Bytes(data['swap']['size']), last_partition())
self.partitions.append(self.swap)
self.root = GPTPartition(Bytes(data['root']['size']),
data['root']['filesystem'], data['root'].get('format_command', None),
'root', last_partition())
self.partitions.append(self.root)
if hasattr(self, 'grub_boot'):
self.partitions[1].size -= gpt_offset
self.partitions[1].size -= self.grub_boot.size
else:
self.partitions[0].offset = gpt_offset
self.partitions[0].size -= gpt_offset
super(GPTPartitionMap, self).__init__(bootloader)
def _before_create(self, event):
volume = event.volume
log_check_call(['/sbin/parted', '--script', '--align', 'none', volume.device_path,
'--', 'mklabel', 'gpt'])
for partition in self.partitions:
partition.create(volume)