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[boot] added FAT16 bootable MS-DOS support 

* also fixed broken FAT32 bootable MS-DOS
* also added extended error report in file.c
This commit is contained in:
Pete Batard 2011-12-02 00:11:53 +00:00
parent b6c6e37927
commit cbc54d764d
3 changed files with 50 additions and 99 deletions
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2
file.c
View File

@ -45,6 +45,7 @@ int write_sectors(HANDLE hDrive, size_t SectorSize,
if((!WriteFile(hDrive, pBuf, (DWORD)BufSize, &Size, NULL)) || (Size != BufSize))
{
uprintf("write_sectors: Write error - %s\n", WindowsErrorString());
uprintf(" StartSector:%0X, nSectors:%0X, SectorSize:%0X\n", StartSector, nSectors, SectorSize);
return 0;
}
@ -74,6 +75,7 @@ int read_sectors(HANDLE hDrive, size_t SectorSize,
if((!ReadFile(hDrive, pBuf, (DWORD)BufSize, &Size, NULL)) || (Size != BufSize))
{
uprintf("read_sectors: Read error - %s\n", WindowsErrorString());
uprintf(" StartSector:%0X, nSectors:%0X, SectorSize:%0X\n", StartSector, nSectors, SectorSize);
return 0;
}

133
format.c
View File

@ -144,7 +144,6 @@ static BOOL FormatDrive(char DriveLetter)
// We may have a " (Default)" trail
for (i=0; i<wcslen(wFSType); i++) {
if (wFSType[i] == ' ') {
uprintf("removed %d\n", i);
wFSType[i] = 0;
break;
}
@ -215,9 +214,9 @@ static BOOL AnalyzeMBR(HANDLE hPhysicalDrive)
}
/*
* Process the MBR
* Process the Master Boot Record
*/
static BOOL ProcessMBR(HANDLE hPhysicalDrive)
static BOOL WriteMBR(HANDLE hPhysicalDrive)
{
BOOL r = FALSE;
unsigned char* buf = NULL;
@ -242,17 +241,26 @@ static BOOL ProcessMBR(HANDLE hPhysicalDrive)
FormatStatus = ERROR_SEVERITY_ERROR|FAC(FACILITY_STORAGE)|ERROR_READ_FAULT;
goto out;
}
// DumpBufferHex(buf, 0x200);
switch (ComboBox_GetCurSel(hFileSystem)) {
// TODO: check for 0x06 & 0x0b?
switch (ComboBox_GetItemData(hFileSystem, ComboBox_GetCurSel(hFileSystem))) {
case FS_FAT16:
if (buf[0x1c2] == 0x0e) {
uprintf("Partition is already FAT16 LBA...\n");
} else if ((buf[0x1c2] != 0x04) && (buf[0x1c2] != 0x06)) {
uprintf("Warning: converting a non FAT16 partition to FAT16 LBA: FS type=0x%02x\n", buf[0x1c2]);
}
buf[0x1c2] = 0x0e;
break;
case FS_FAT32:
if (buf[0x1c2] == 0x0c) {
uprintf("Partition is already FAT32 LBA...\n");
} else if (buf[0x1c2] != 0x0b) {
uprintf("Warning: converting a non FAT32 partition to FAT32 LBA: FS type=0x%02x\n", buf[0x1c2]);
}
buf[0x1c2] = 0x0c;
break;
}
if (IsChecked(IDC_DOSSTARTUP)) {
if (IsChecked(IDC_DOS)) {
buf[0x1be] = 0x80; // Set first partition bootable
}
@ -266,71 +274,36 @@ static BOOL ProcessMBR(HANDLE hPhysicalDrive)
fake_fd._bufsiz = SelectedDrive.Geometry.BytesPerSector;
r = write_95b_mbr(&fake_fd);
if (!read_sectors(hPhysicalDrive, SelectedDrive.Geometry.BytesPerSector, 0, nSecs, buf, SecSize)) {
uprintf("Could not re-read MBR\n");
FormatStatus = ERROR_SEVERITY_ERROR|FAC(FACILITY_STORAGE)|ERROR_READ_FAULT;
goto out;
}
DumpBufferHex(buf, 0x200);
out:
safe_free(buf);
return r;
}
static BOOL ProcessFS_BR(HANDLE hLogicalVolume)
/*
* Process the Partition Boot Record
*/
static BOOL WritePBR(HANDLE hLogicalVolume)
{
BOOL r = FALSE;
unsigned char* buf = NULL;
FILE fake_fd;
size_t SecSize = SelectedDrive.Geometry.BytesPerSector;
size_t nSecs = (0x400 + SecSize -1) / SecSize;
fake_fd._ptr = (char*)hLogicalVolume;
fake_fd._bufsiz = SelectedDrive.Geometry.BytesPerSector;
write_fat_32_br(&fake_fd, 0);
// FormatEx rewrites the MBR and removes the LBA attribute of FAT16
// and FAT32 partitions - we need to correct this in the MBR
// TODO: something else for bootable GPT
buf = (unsigned char*)malloc(SecSize * nSecs);
if (buf == NULL) {
uprintf("Could not allocate memory for FS BR");
FormatStatus = ERROR_SEVERITY_ERROR|FAC(FACILITY_STORAGE)|ERROR_NOT_ENOUGH_MEMORY;
goto out;
switch (ComboBox_GetItemData(hFileSystem, ComboBox_GetCurSel(hFileSystem))) {
case FS_FAT16:
if (write_fat_16_br(&fake_fd, 0))
return TRUE;
case FS_FAT32:
if (write_fat_32_br(&fake_fd, 0))
return TRUE;
default:
uprintf("unsupported FS for FS BR processing\n");
break;
}
if (!read_sectors(hLogicalVolume, SelectedDrive.Geometry.BytesPerSector, 0, nSecs, buf, SecSize*nSecs)) {
uprintf("Could not read FS BR\n");
FormatStatus = ERROR_SEVERITY_ERROR|FAC(FACILITY_STORAGE)|ERROR_READ_FAULT;
goto out;
}
uprintf("FS_BR:\n");
DumpBufferHex(buf, 0x400);
out:
safe_free(buf);
return r;
FormatStatus = ERROR_SEVERITY_ERROR|FAC(FACILITY_STORAGE)|ERROR_WRITE_FAULT;
return FALSE;
}
/* http://msdn.microsoft.com/en-us/library/windows/desktop/aa364562%28v=vs.85%29.aspx
Dismounting a volume is useful when a volume needs to disappear for a while. For
example, an application that changes a volume file system from the FAT file system
to the NTFS file system might use the following procedure.
To change a volume file system
Open a volume.
Lock the volume.
Format the volume.
Dismount the volume.
Unlock the volume.
Close the volume handle.
A dismounting operation removes the volume from the FAT file system awareness.
When the operating system mounts the volume, it appears as an NTFS file system volume.
*/
/*
* Standalone thread for the formatting operation
*/
@ -341,7 +314,6 @@ void __cdecl FormatThread(void* param)
HANDLE hLogicalVolume = INVALID_HANDLE_VALUE;
char drive_name[] = "?:";
int i;
// DWORD size;
hPhysicalDrive = GetDriveHandle(num, NULL, TRUE, TRUE);
if (hPhysicalDrive == INVALID_HANDLE_VALUE) {
@ -358,7 +330,7 @@ void __cdecl FormatThread(void* param)
// Make sure we can access the volume again before trying to format it
for (i=0; i<10; i++) {
Sleep(500);
hLogicalVolume = GetDriveHandle(num, drive_name, FALSE, TRUE);
hLogicalVolume = GetDriveHandle(num, drive_name, FALSE, FALSE);
if (hLogicalVolume != INVALID_HANDLE_VALUE) {
break;
}
@ -381,50 +353,27 @@ void __cdecl FormatThread(void* param)
// TODO: optionally disable indexing on NTFS
// TODO: use progress bar during MBR/FSBR/MSDOS copy
// Ideally we would lock, FSCTL_DISMOUNT_VOLUME, unlock and close our volume
// handle, but some explorer versions have problems with volumes disappear
// #define VOL_DISMOUNT
#ifdef VOL_DISMOUNT
// Dismount the volume
hLogicalVolume = GetDriveHandle(num, drive_name, FALSE, TRUE);
if (hLogicalVolume == INVALID_HANDLE_VALUE) {
uprintf("Could not open the volume for dismount\n");
goto out;
}
if (!DeviceIoControl(hLogicalVolume, FSCTL_DISMOUNT_VOLUME, NULL, 0, NULL, 0, &size, NULL)) {
uprintf("Could not dismount volume\n");
goto out;
}
#endif
PrintStatus("Writing master boot record...\n");
if (!ProcessMBR(hPhysicalDrive)) {
if (!WriteMBR(hPhysicalDrive)) {
// Errorcode has already been set
goto out;
}
#ifdef VOL_DISMOUNT
safe_unlockclose(hLogicalVolume);
// Sleep(10000);
hLogicalVolume = GetDriveHandle(num, drive_name, FALSE, FALSE);
if (hLogicalVolume == INVALID_HANDLE_VALUE) {
uprintf("Could not re-mount volume\n");
goto out;
}
#endif
if (IsChecked(IDC_DOSSTARTUP)) {
hLogicalVolume = GetDriveHandle(num, drive_name, TRUE, FALSE);
if (IsChecked(IDC_DOS)) {
// We must have a lock to modify the FS boot record...
hLogicalVolume = GetDriveHandle(num, drive_name, TRUE, TRUE);
if (hLogicalVolume == INVALID_HANDLE_VALUE) {
uprintf("Could not re-mount volume\n");
uprintf("Could not re-mount volume for partition boot record access\n");
FormatStatus = ERROR_SEVERITY_ERROR|FAC(FACILITY_STORAGE)|ERROR_OPEN_FAILED;
goto out;
}
PrintStatus("Writing filesystem boot record...\n");
if (!ProcessFS_BR(hLogicalVolume)) {
PrintStatus("Writing partition boot record...\n");
if (!WritePBR(hLogicalVolume)) {
// Errorcode has already been set
goto out;
}
// ... and we must have relinquished that lock to write the MS-DOS files
safe_unlockclose(hLogicalVolume);
PrintStatus("Copying MS-DOS files...\n");
if (!ExtractMSDOS(drive_name)) {
FormatStatus = ERROR_SEVERITY_ERROR|FAC(FACILITY_STORAGE)|ERROR_CANNOT_COPY;

14
rufus.rc
View File

@ -47,7 +47,7 @@ BEGIN
GROUPBOX "Format Options",IDC_STATIC,15,150,189,40
EDITTEXT IDC_LABEL,15,132,190,13,ES_AUTOHSCROLL
CONTROL "&Quick Format",IDC_QUICKFORMAT,"Button",BS_AUTOCHECKBOX | WS_TABSTOP,21,162,58,10
CONTROL "Create an &MS-DOS startup disk",IDC_DOSSTARTUP,"Button",BS_AUTOCHECKBOX | WS_TABSTOP,21,174,115,10
CONTROL "Create an &MS-DOS startup disk",IDC_DOS,"Button",BS_AUTOCHECKBOX | WS_TABSTOP,21,174,115,10
LTEXT "New volume &label",IDC_STATIC,17,122,105,10
CONTROL "",IDC_PROGRESS,"msctls_progress32",PBS_SMOOTH | WS_BORDER,15,198,189,9
END
@ -63,7 +63,7 @@ BEGIN
DEFPUSHBUTTON "OK",IDOK,231,175,50,14,WS_GROUP
CONTROL "<a href=""https://github.com/pbatard/rufus/wiki/Rufus"">https://github.com/pbatard/rufus</a>",IDC_ABOUT_RUFUS_URL,
"SysLink",WS_TABSTOP,46,47,114,9
LTEXT "Version 1.0.0 (Build 60)",IDC_STATIC,46,19,78,8
LTEXT "Version 1.0.0 (Build 61)",IDC_STATIC,46,19,78,8
PUSHBUTTON "License...",IDC_ABOUT_LICENSE,46,175,50,14,WS_GROUP
EDITTEXT IDC_ABOUT_COPYRIGHTS,46,107,235,63,ES_MULTILINE | ES_READONLY | WS_VSCROLL
LTEXT "Report bugs or request enhancements at:",IDC_STATIC,46,66,187,8
@ -162,8 +162,8 @@ END
//
VS_VERSION_INFO VERSIONINFO
FILEVERSION 1,0,0,60
PRODUCTVERSION 1,0,0,60
FILEVERSION 1,0,0,61
PRODUCTVERSION 1,0,0,61
FILEFLAGSMASK 0x3fL
#ifdef _DEBUG
FILEFLAGS 0x1L
@ -180,13 +180,13 @@ BEGIN
BEGIN
VALUE "CompanyName", "akeo.ie"
VALUE "FileDescription", "Rufus"
VALUE "FileVersion", "1.0.0.60"
VALUE "FileVersion", "1.0.0.61"
VALUE "InternalName", "Rufus"
VALUE "LegalCopyright", "© 2011 Pete Batard (GPL v3)"
VALUE "LegalTrademarks", "http://www.gnu.org/copyleft/gpl.html"
VALUE "OriginalFilename", "rufus.exe"
VALUE "ProductName", "Rufus"
VALUE "ProductVersion", "1.0.0.60"
VALUE "ProductVersion", "1.0.0.61"
END
END
BLOCK "VarFileInfo"
@ -212,7 +212,7 @@ IDI_ICON ICON "rufus.ico"
STRINGTABLE
BEGIN
IDS_VERSION "Rufus v1.0.0.60"
IDS_VERSION "Rufus v1.0.0.61"
END
#endif // English resources