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Document post-mbr gap and make it MBR-only

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This commit is contained in:
Anders Ingemann 2013-10-08 23:12:03 +02:00
parent ceae489210
commit 754e414742
4 changed files with 11 additions and 2 deletions
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2
base/fs/partitionmaps/abstract.py
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@ -22,7 +22,7 @@ class AbstractPartitionMap(FSMProxy):
return self.fsm.current == 'mapped' return self.fsm.current == 'mapped'
def get_total_size(self): def get_total_size(self):
return sum(p.size for p in self.partitions) + 1 return sum(p.size for p in self.partitions)
def create(self, volume): def create(self, volume):
self.fsm.create(volume=volume) self.fsm.create(volume=volume)

3
base/fs/partitionmaps/mbr.py
View file

@ -19,6 +19,9 @@ class MBRPartitionMap(AbstractPartitionMap):
super(MBRPartitionMap, self).__init__() super(MBRPartitionMap, self).__init__()
def get_total_size(self):
return sum(p.size for p in self.partitions) + 1 # Post-MBR gap for embedding grub
def _before_create(self, event): def _before_create(self, event):
volume = event.volume volume = event.volume
log_check_call(['/sbin/parted', '--script', '--align', 'none', volume.device_path, log_check_call(['/sbin/parted', '--script', '--align', 'none', volume.device_path,

2
base/fs/partitions/base.py
View file

@ -26,7 +26,7 @@ class BasePartition(AbstractPartition):
def get_start(self): def get_start(self):
if self.previous is None: if self.previous is None:
return 1 return 0
else: else:
return self.previous.get_start() + self.previous.size return self.previous.get_start() + self.previous.size

6
base/fs/partitions/mbr.py
View file

@ -4,6 +4,12 @@ from base import BasePartition
class MBRPartition(BasePartition): class MBRPartition(BasePartition):
def get_start(self):
if self.previous is None:
return 1 # Post-MBR gap for embedding grub
else:
return self.previous.get_start() + self.previous.size
def _before_create(self, e): def _before_create(self, e):
start = self.get_start() start = self.get_start()
parted_command = ('mkpart primary {start}MiB {end}MiB' parted_command = ('mkpart primary {start}MiB {end}MiB'