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make sectorAlignment signed (all sector numbers throughout the application are 

signed)

adjust createUnallocated() so that it leaves sectorAlignment sectors free after
the start of an extended partition for a vista disk label, not sectorsPerTrack

check for the right minimum size for vista and msdos

svn path=/trunk/extragear/sysadmin/partitionmanager/; revision=1084213
This commit is contained in:
Volker Lanz 2010-02-02 18:04:38 +00:00
parent 9f2ff10e2f
commit 3ba56f1fd1
1 changed files with 5 additions and 6 deletions
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11
src/core/partitiontable.cpp
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@ -206,7 +206,7 @@ QStringList PartitionTable::flagNames(Flags flags)
/** @return the sector size to snap the partition start and end to
*/
static quint64 sectorAlignment(const Device& d)
static qint64 sectorAlignment(const Device& d)
{
return d.partitionTable()->type() == PartitionTable::msdos ? d.cylinderSize() : 2048;
}
@ -453,19 +453,18 @@ Partition* createUnallocated(const Device& device, PartitionNode& parent, qint64
return NULL;
}
// Leave a track free at the start for a new partition's metadata
start += device.sectorsPerTrack();
// Leave a track (msdos) or sector alignment sectors (vista) free at the start for a new partition's metadata
start += device.partitionTable()->type() == PartitionTable::msdos ? device.sectorsPerTrack() : sectorAlignment(device);
// .. and also at the end for the metadata for a partition to follow us, if we're not
// at the end of the extended partition
if (end < extended->lastSector())
end -= device.sectorsPerTrack();
end -= device.partitionTable()->type() == PartitionTable::msdos ? device.sectorsPerTrack() : sectorAlignment(device);
r |= PartitionRole::Logical;
}
// TODO: what happens with this for non-msdos disk labels?
if (end - start + 1 < device.cylinderSize())
if (end - start + 1 < sectorAlignment(device))
return NULL;
return new Partition(&parent, device, PartitionRole(r), FileSystemFactory::create(FileSystem::Unknown, start, end), start, end, -1);