From b3ec3aeb5a0b047c492bb3b13dc9e7c8c4451e58 Mon Sep 17 00:00:00 2001
From: Pierre Schweitzer <pierre@reactos.org>
Date: Thu, 27 Aug 2015 20:56:08 +0000
Subject: [PATCH] [NTFS] It seems that our disk.sys returns "unknown" media
 type when performing IOCTL_DISK_GET_DRIVE_GEOMETRY on an extended partition.
 Not sure how Windows handles this (if any volunteer for a test :-)), in the
 meantime, forcibly sector size to 512B to allow NTFS driver opening volumes
 on extended partitions

svn path=/trunk/; revision=68835
---
 reactos/drivers/filesystems/ntfs/fsctl.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/reactos/drivers/filesystems/ntfs/fsctl.c b/reactos/drivers/filesystems/ntfs/fsctl.c
index fd5958882dd..67f26647ebd 100644
--- a/reactos/drivers/filesystems/ntfs/fsctl.c
+++ b/reactos/drivers/filesystems/ntfs/fsctl.c
@@ -89,6 +89,10 @@ NtfsHasFileSystem(PDEVICE_OBJECT DeviceToMount)
             return STATUS_UNRECOGNIZED_VOLUME;
         }
     }
+    else if (DiskGeometry.MediaType == Unknown)
+    {
+        DiskGeometry.BytesPerSector = 512;
+    }
 
     DPRINT1("BytesPerSector: %lu\n", DiskGeometry.BytesPerSector);
     BootSector = ExAllocatePoolWithTag(NonPagedPool,