[ros-diffs] [pschweitzer] 73112: [NTOSKRNL] For now, disable broken code in FstubReadPartitionTableEFI(). In its current state, it wrongly assumes backup GPT is broken and thus attempts to fix main GPT (?!). F...

[pschweitzer]

Author: pschweitzer
Date: Thu Nov  3 21:13:30 2016
New Revision: 73112

URL: http://svn.reactos.org/svn/reactos?rev=73112&view=rev
Log:
[NTOSKRNL]
For now, disable broken code in FstubReadPartitionTableEFI(). In its current 
state, it wrongly assumes backup GPT is broken and thus attempts to fix main 
GPT (?!).
Furthermore, it appears Windows 2K3 doesn't perform such checks, nor such GPT 
rewritings in FstubReadPartitionTableEFI().

CORE-12261

Modified:
    trunk/reactos/ntoskrnl/fstub/fstubex.c

Modified: trunk/reactos/ntoskrnl/fstub/fstubex.c
URL: 
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/fstub/fstubex.c?rev=73112&r1=73111&r2=73112&view=diff
==============================================================================
--- trunk/reactos/ntoskrnl/fstub/fstubex.c      [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/fstub/fstubex.c      [iso-8859-1] Thu Nov  3 
21:13:30 2016
@@ -963,8 +963,12 @@
     ULONG NumberOfEntries;
     PEFI_PARTITION_HEADER EfiHeader;
     EFI_PARTITION_ENTRY PartitionEntry;
+#if 0
     BOOLEAN UpdatedPartitionTable = FALSE;
     ULONGLONG SectorsForPartitions, PartitionEntryLBA;
+#else
+    ULONGLONG PartitionEntryLBA;
+#endif
     PDRIVE_LAYOUT_INFORMATION_EX DriveLayoutEx = NULL;
     ULONG i, PartitionCount, PartitionIndex, PartitionsPerSector;
     PAGED_CODE();
@@ -996,6 +1000,7 @@
         return STATUS_INSUFFICIENT_RESOURCES;
     }
 
+#if 0
     if (!ReadBackupTable)
     {
         /* If we weren't ask to read backup table,
@@ -1015,6 +1020,7 @@
             UpdatedPartitionTable = TRUE;
         }
     }
+#endif
 
     DriveLayoutEx->PartitionStyle = PARTITION_STYLE_GPT;
     /* Translate LBA -> Offset */
@@ -1083,12 +1089,14 @@
     }
     DriveLayoutEx->PartitionCount = PartitionCount;
 
+#if 0
     /* If we updated partition table using backup table, rewrite partition 
table */
     if (UpdatedPartitionTable)
     {
         IoWritePartitionTableEx(Disk->DeviceObject,
                                 DriveLayoutEx);
     }
+#endif
 
     /* Finally, return read data */
     *DriveLayout = DriveLayoutEx;