PartitionDevice was inheriting the currentSize property from StorageDevice,
but that uses partedDevice.getSize() which returns 1024 when called on
extended partitions (as that is what the kernel reports).
This causes _setTargetSize() to try and change the extended partition geometry
even when called with the current extended partition geometry size, as
currentSize was mis-reporting the extended partition size. Since
we do end sector alignment now a days when changing the partition geometry,
we could end up making the extended partition to small to hold the
last logical partition resulting in a:
PartitionException: Unable to satisfy all constraints on the partition.
Error. This patch fixes this by adding a currentSize method to the
PartitionDevice class, which properly reports the currentSize for extended
partitions.
---
storage/devices.py | 12 ++++++++++++
1 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/storage/devices.py b/storage/devices.py
index eee43e2..44b063a 100644
--- a/storage/devices.py
+++ b/storage/devices.py
@@ -926,6 +926,7 @@ class PartitionDevice(StorageDevice):
self.partedFlags = {}
self._partedPartition = None
self._origPath = None
+ self._currentSize = 0
# FIXME: Validate size, but only if this is a new partition.
# For existing partitions we will get the size from
@@ -1231,6 +1232,7 @@ class PartitionDevice(StorageDevice):
# this is in MB
self._size = self.partedPartition.getSize()
+ self._currentSize = self._size
self.targetSize = self._size
self._partType = self.partedPartition.type
@@ -1270,6 +1272,7 @@ class PartitionDevice(StorageDevice):
self.partedPartition = self.disk.format.partedDisk.getPartitionByPath(self.path)
self.exists = True
+ self._currentSize = self.partedPartition.getSize()
self.setup()
finally:
if w:
@@ -1313,6 +1316,7 @@ class PartitionDevice(StorageDevice):
end=geometry.end)
self.disk.format.commit()
+ self._currentSize = partition.getSize()
def destroy(self):
""" Destroy the device. """
@@ -1426,6 +1430,14 @@ class PartitionDevice(StorageDevice):
else:
return self.format.maxSize
+ @property
+ def currentSize(self):
+ """ The device's actual size. """
+ if self.exists:
+ return self._currentSize
+ else:
+ return 0
+
class DMDevice(StorageDevice):
""" A device-mapper device """
--
1.6.6.1
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