[cgutman] 48700: [USETUP] - Remove code that was corrupting disk data and causing setup to fail in rare cases - Write the MBR in all cases (Windows setup behavior too) - We can overwrite GRUB and L...

Author: cgutman
Date: Sat Sep  4 20:56:19 2010
New Revision: 48700

URL: http://svn.reactos.org/svn/reactos?rev=48700&view=rev
Log:
[USETUP]
- Remove code that was corrupting disk data and causing setup to fail in rare cases
- Write the MBR in all cases (Windows setup behavior too)
- We can overwrite GRUB and LILO now but we still can't boot because we have trouble
reading the partition table if it was made in Linux

Modified:
    trunk/reactos/base/setup/usetup/interface/usetup.c

Modified: trunk/reactos/base/setup/usetup/interface/usetup.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/base/setup/usetup/interfac…
==============================================================================
--- trunk/reactos/base/setup/usetup/interface/usetup.c [iso-8859-1] (original)
+++ trunk/reactos/base/setup/usetup/interface/usetup.c [iso-8859-1] Sat Sep  4 20:56:19
2010
@@ -2450,29 +2450,6 @@
                 CheckActiveBootPartition(PartitionList);
             }
 
-            /* Install MBR if necessary */
-            if (DiskEntry->NoMbr &&
-                DiskEntry->BiosDiskNumber == 0)
-            {
-                wcscpy(PathBuffer, SourceRootPath.Buffer);
-                wcscat(PathBuffer, L"\\loader\\dosmbr.bin");
-
-                DPRINT("Install MBR bootcode: %S ==> %S\n",
-                       PathBuffer, DestinationRootPath.Buffer);
-
-                /* Install MBR bootcode */
-                Status = InstallMbrBootCodeToDisk(PathBuffer,
-                                                  DestinationRootPath.Buffer);
-                if (!NT_SUCCESS (Status))
-                {
-                    DPRINT1("InstallMbrBootCodeToDisk() failed (Status
%lx)\n",
-                            Status);
-                    return FALSE;
-                }
-
-                DiskEntry->NoMbr = FALSE;
-            }
-
             if (wcscmp(FileSystemList->Selected->FileSystem, L"FAT") ==
0)
             {
                 /* FIXME: Install boot code. This is a hack! */
@@ -3621,7 +3598,10 @@
 {
     UCHAR PartitionType;
     NTSTATUS Status;
-
+    WCHAR DestinationDevicePathBuffer[MAX_PATH];
+    WCHAR SourceMbrPathBuffer[MAX_PATH];
+
+    /* Step 1: Write the VBR */
     PartitionType = PartitionList->ActiveBootPartition->
         PartInfo[PartitionList->ActiveBootPartitionNumber].PartitionType;
     if ((PartitionType == PARTITION_FAT_12) ||
@@ -3640,8 +3620,6 @@
             MUIDisplayError(ERROR_INSTALL_BOOTCODE, Ir, POPUP_WAIT_ENTER);
             return QUIT_PAGE;
         }
-
-        return SUCCESS_PAGE;
     }
     else
     {
@@ -3649,7 +3627,28 @@
         return QUIT_PAGE;
     }
 
-    return BOOT_LOADER_HARDDISK_PAGE;
+    /* Step 2: Write the MBR */
+    swprintf(DestinationDevicePathBuffer,
+             L"\\Device\\Harddisk%d\\Partition0",
+             PartitionList->ActiveBootDisk->DiskNumber);
+    
+    wcscpy(SourceMbrPathBuffer, SourceRootPath.Buffer);
+    wcscat(SourceMbrPathBuffer, L"\\loader\\dosmbr.bin");
+        
+    DPRINT("Install MBR bootcode: %S ==> %S\n",
+            SourceMbrPathBuffer, DestinationDevicePathBuffer);
+
+    Status = InstallMbrBootCodeToDisk(SourceMbrPathBuffer,
+                                      DestinationDevicePathBuffer);
+    if (!NT_SUCCESS (Status))
+    {
+        DPRINT1("InstallMbrBootCodeToDisk() failed (Status %lx)\n",
+                Status);
+        MUIDisplayError(ERROR_INSTALL_BOOTCODE, Ir, POPUP_WAIT_ENTER);
+        return QUIT_PAGE;
+    }
+
+    return SUCCESS_PAGE;
 }