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Recalculate the partition value for freeldr. Freeldr uses a different partition numbering like linux.

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svn path=/trunk/; revision=3923
This commit is contained in:
Hartmut Birr 2003-01-02 21:42:56 +00:00
parent efc518af7b
commit 8c7e8c4bbc
1 changed files with 36 additions and 0 deletions
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36
freeldr/freeldr/reactos/reactos.c
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@ -36,6 +36,14 @@
#define NDEBUG
#define IsRecognizedPartition(P) \
((P) == PARTITION_FAT_12 || \
(P) == PARTITION_FAT_16 || \
(P) == PARTITION_HUGE || \
(P) == PARTITION_IFS || \
(P) == PARTITION_FAT32 || \
(P) == PARTITION_FAT32_XINT13 || \
(P) == PARTITION_XINT13)
static BOOL
LoadKernel(PCHAR szFileName, int nPos)
@ -442,6 +450,8 @@ LoadAndBootReactOS(PUCHAR OperatingSystemName)
char* Base;
U32 Size;
PARTITION_TABLE_ENTRY PartitionTableEntry;
U32 rosPartition;
//
// Open the operating system section
@ -506,6 +516,32 @@ LoadAndBootReactOS(PUCHAR OperatingSystemName)
((char *)(&mb_info.boot_device))[0] = (char)BootDrive;
((char *)(&mb_info.boot_device))[1] = (char)BootPartition;
/* recalculate the boot partition for freeldr */
i = 0;
rosPartition = 0;
while (1)
{
if (!DiskGetPartitionEntry(BootDrive, ++i, &PartitionTableEntry))
{
BootPartition = 0;
break;
}
if (IsRecognizedPartition(PartitionTableEntry.SystemIndicator))
{
if (++rosPartition == BootPartition)
{
BootPartition = i;
break;
}
}
}
if (BootPartition == 0)
{
sprintf(MsgBuffer,"Invalid system path: '%s'", value);
UiMessageBox(MsgBuffer);
return;
}
/* copy ARC path into kernel command line */
strcpy(multiboot_kernel_cmdline, value);