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[core] display a notice about Legacy in the protective MBR for GPT

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* This should help Windows users who create a GPT/UEFI drive and try to use it in BIOS/Legacy
* Also make sure that we take into account the split space for both "SELECT" and "DOWNLOAD"
This commit is contained in:
Pete Batard 2019-03-16 13:01:55 +00:00
parent 789373ed59
commit 28c1d6eb31
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GPG key ID: 38E0CF5E69EDD671
11 changed files with 200 additions and 10 deletions
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14
src/format.c
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@ -889,6 +889,15 @@ static BOOL WriteMBR(HANDLE hPhysicalDrive)
if (SelectedDrive.SectorSize < 512)
goto out;
if (pt == PARTITION_STYLE_GPT) {
// Add a notice in the protective MBR
fake_fd._handle = (char*)hPhysicalDrive;
set_bytes_per_sector(SelectedDrive.SectorSize);
uprintf(using_msg, "Rufus protective");
r = write_rufus_gpt_mbr(fp);
goto notify;
}
// FormatEx rewrites the MBR and removes the LBA attribute of FAT16
// and FAT32 partitions - we need to correct this in the MBR
buffer = (unsigned char*)_mm_malloc(SelectedDrive.SectorSize, 16);
@ -1018,6 +1027,9 @@ static BOOL WriteSBR(HANDLE hPhysicalDrive)
FAKE_FD fake_fd = { 0 };
FILE* fp = (FILE*)&fake_fd;
if (pt == PARTITION_STYLE_GPT)
return TRUE;
fake_fd._handle = (char*)hPhysicalDrive;
set_bytes_per_sector(SelectedDrive.SectorSize);
// Ensure that we have sufficient space for the SBR
@ -1997,7 +2009,7 @@ DWORD WINAPI FormatThread(void* param)
}
// Thanks to Microsoft, we must fix the MBR AFTER the drive has been formatted
if (pt == PARTITION_STYLE_MBR) {
if ((pt == PARTITION_STYLE_MBR) || ((bt != BT_NON_BOOTABLE) && (pt == PARTITION_STYLE_GPT))) {
PrintInfoDebug(0, MSG_228); // "Writing master boot record..."
if ((!WriteMBR(hPhysicalDrive)) || (!WriteSBR(hPhysicalDrive))) {
if (!IS_ERROR(FormatStatus))