[core] detect, report and warn when multiple partitions are in use

* Closes #191
* Also fix various minor warnings

res/localization/ChangeLog.txt

@@ -7,9 +7,12 @@ Remember to also update the version number for your translation ('v x.y.z')
 once you have matched all the changes that occurred for the en-US translation.
 
 o Version 1.0.8 (2014.01.21)
-  - MSG_234: 'v%d' is replaced with '%s' (change already applied to existing translations)
+  - Changed MSG_047 "%s (%c:)" -> "Multiple Volumes" (non-updated ones have been commented out)
+  - *NEW* MSG_093 "IMPORTANT: THIS DRIVE CONTAINS MULTIPLE PARTITIONS OR VOLUMES!!"
+  - *NEW* MSG_094 "Multiple partitions detected"
   - *NEW* MSG_114 "This image uses Syslinux %s but this application only includes Syslinux %s
   - *NEW* MSG_115 "Download required"
+  - Changed MSG_234: 'v%d' is replaced with '%s' (change already applied to existing translations)
 
 o Version 1.0.7 (2014.01.01)
   - Added MSG_092 again

res/localization/rufus.loc

@@ -53,7 +53,7 @@
 # http://download.microsoft.com/download/9/5/E/95EF66AF-9026-4BB0-A41D-A4F81802D92C/%5BMS-LCID%5D.pdf
 # for the LCID (0x####) codes you should use
 l "en-US" "English (English)" 0x0409, 0x0809, 0x0c09, 0x1009, 0x1409, 0x1809, 0x1c09, 0x2009, 0x2409, 0x2809, 0x2c09, 0x3009, 0x3409, 0x3809, 0x3c09, 0x4009, 0x4409, 0x4809
-v 1.0.7
+v 1.0.8
 
 # Main dialog
 g IDD_DIALOG
@@ -187,7 +187,8 @@ t MSG_043 "Error: %s"
 t MSG_044 "File download"
 t MSG_045 "USB Storage Device (Generic)"
 t MSG_046 "%s (Disk %d)"
-t MSG_047 "%s (%c:)"
+# Used when a drive is detected that contains more than one partition
+t MSG_047 "Multiple Partitions"
 t MSG_048 "Rufus - Flushing buffers"
 t MSG_049 "Rufus - Cancellation"
 
@@ -253,6 +254,10 @@ t MSG_090 "Unsupported ISO"
 t MSG_091 "When using UEFI Target Type, only EFI bootable ISO images are supported. "
 	"Please select an EFI bootable ISO or set the Target Type to BIOS."
 t MSG_092 "Unsupported filesystem"
+t MSG_093 "IMPORTANT: THIS DRIVE CONTAINS MULTIPLE PARTITIONS!!\n\n"
+	"This may include partitions/volumes that aren't listed or even visible from Windows. "
+	"Should you wish to proceed, you are responsible for any data loss on these partitions."
+t MSG_094 "Multiple partitions detected"
 t MSG_096 "Only FAT/FAT32 is supported for this type of ISO. Please select FAT/FAT32 as the File system."
 t MSG_097 "Only 'bootmgr' or 'WinPE' based ISO images can currently be used with NTFS."
 t MSG_098 "FAT/FAT32 can only be used for isolinux based ISO images or when the Target Type is UEFI."
@@ -559,7 +564,7 @@ t MSG_043 "错误：%s"
 t MSG_044 "文件下载"
 t MSG_045 "通用 USB 存储设备"
 t MSG_046 "%s (磁盘 %d)"
-t MSG_047 "%s (%c:)"
+# t MSG_047 "Multiple Partitions"
 t MSG_048 "Rufus - 刷新缓冲区"
 t MSG_049 "Rufus - 取消"
 
@@ -907,7 +912,7 @@ t MSG_043 "錯誤: %s"
 t MSG_044 "檔案下載"
 t MSG_045 "USB 裝置"
 t MSG_046 "%s (磁碟 %d)"
-t MSG_047 "%s (%c:)"
+# t MSG_047 "Multiple Partitions"
 t MSG_048 "Rufus - 排清緩衝區"
 t MSG_049 "Rufus - 取消"
 
@@ -1279,7 +1284,7 @@ t MSG_043 "Fout: %s"
 t MSG_044 "Bestand download"
 t MSG_045 "USB Opslag Apparaat (Algemeen)"
 t MSG_046 "%s (Disk %d)"
-t MSG_047 "%s (%c:)"
+# t MSG_047 "Multiple Partitions"
 t MSG_048 "Rufus - Buffers aan het legen"
 t MSG_049 "Rufus - Annulering"
 
@@ -1497,7 +1502,7 @@ t MSG_259 "Forceer update"
 
 ################################################################################
 l "fr-FR" "French (Français)" 0x040c, 0x080c, 0x0c0c, 0x100c, 0x140c, 0x180c, 0x1c0c, 0x200c, 0x240c, 0x280c, 0x2c0c, 0x300c, 0x340c, 0x380c, 0xe40c
-v 1.0.7
+v 1.0.8
 b "en-US"
 
 g IDD_DIALOG
@@ -1630,7 +1635,7 @@ t MSG_043 "Erreur: %s"
 t MSG_044 "Téléchargement de fichier"
 t MSG_045 "Pérpih. de stockage USB (Générique)"
 t MSG_046 "%s (Disque %d)"
-t MSG_047 "%s (%c:)"
+t MSG_047 "Plusieurs partitions"
 t MSG_048 "Rufus - Flush de la mémoire tampon"
 t MSG_049 "Rufus - Annulation"
 
@@ -1694,6 +1699,10 @@ t MSG_090 "Image ISO on supportée"
 t MSG_091 "Quand UEFI est séelectionné, seules les images ISO basées sur EFI sont supportées. "
 	"Veuillez sélectionner une image ISO démarrable avec EFI ou sélectionner BIOS pour le système de destination."
 t MSG_092 "Système de fichiers non supporté"
+t MSG_093 "IMPORTANT: CE PÉRIPHÉRIQUE CONTIENT PLUSIEURS PARTITIONS !!\n\n"
+	"Ceci peut inclure des partitions/volumes qui ne sont pas listées ou bien visibles depuis Windows. Si vous décidez "
+	"de continuer, vous êtes responsable de toute perte de données intervenant sur ces partitions."
+t MSG_094 "Partitions multiples détectées"
 t MSG_096 "Seul FAT/FAT32 est supporté avec ce type d'image ISO. Veuillez sélectionner FAT/FAT32 pour le système de fichiers."
 t MSG_097 "Seules les images ISO utilisant 'bootmgr' ou 'WinPE' peuvent être utilisées avec NTFS."
 t MSG_098 "FAT/FAT32 peut seulement être utilisé pour les images ISO utilisant 'isolinux' ou lorsque que le système de destination est UEFI."
@@ -2003,7 +2012,7 @@ t MSG_043 "Fehler: %s"
 t MSG_044 "Dateidownload"
 t MSG_045 "USB Massenspeichergerät (Allgemein)"
 t MSG_046 "%s (Disk %d)"
-t MSG_047 "%s (%c:)"
+# t MSG_047 "Multiple Partitions"
 t MSG_048 "Rufus - Leere Puffer"
 t MSG_049 "Rufus - Abbrechen"
 
@@ -2405,7 +2414,7 @@ t MSG_043 "Σφάλμα: %s"
 t MSG_044 "Λήψη αρχείου"
 t MSG_045 "Συσκευή αποθήκευσης USB(Generic)"
 t MSG_046 "%s (Δίσκος %d)"
-t MSG_047 "%s (%c:)"
+# t MSG_047 "Multiple Partitions"
 t MSG_048 "Rufus - Flushing προσωρινής μνήμης"
 t MSG_049 "Rufus - Ακύρωση"
 
@@ -2758,7 +2767,7 @@ t MSG_043 "Hiba: %s"
 t MSG_044 "Fájl letöltése"
 t MSG_045 "USB Tároló eszköz"
 t MSG_046 "%s (Lemez: %d)"
-t MSG_047 "%s (%c:)"
+# t MSG_047 "Multiple Partitions"
 t MSG_048 "Rufus - Bufferelés"
 t MSG_049 "Rufus - Megszakítás"
 
@@ -3154,7 +3163,7 @@ t MSG_043 "Kesalahan: %s"
 t MSG_044 "File download"
 t MSG_045 "Perangkat Penyimpanan USB(Generic)"
 t MSG_046 "%s (Disk %d)"
-t MSG_047 "%s (%c:)"
+# t MSG_047 "Multiple Partitions"
 t MSG_048 "Rufus - Flushing buffers"
 t MSG_049 "Rufus - Pembatalan"
 
@@ -3531,7 +3540,7 @@ t MSG_043 "Errore: %s"
 t MSG_044 "Download file"
 t MSG_045 "Unità memorizzazione USB (generica)"
 t MSG_046 "%s (disco %d)"
-t MSG_047 "%s (%c:)"
+# t MSG_047 "Multiple Partitions"
 t MSG_048 "Rufus - Svuotamento buffer"
 t MSG_049 "Rufus - Cancellazione"
 
@@ -3887,7 +3896,7 @@ t MSG_043 "오류: %s"
 t MSG_044 "다운로드 파일"
 t MSG_045 "USB 저장 장치 (일반)"
 t MSG_046 "%s (디스크 %d)"
-t MSG_047 "%s (%c:)"
+# t MSG_047 "Multiple Partitions"
 t MSG_048 "Rufus - 버퍼 비움"
 t MSG_049 "Rufus - 해제"
 
@@ -4285,7 +4294,7 @@ t MSG_043 "Klaida: %s"
 t MSG_044 "Failo atsisiuntimas"
 t MSG_045 "USB saugyklos įrenginys (bendrinis)"
 t MSG_046 "%s (diskas %d)"
-t MSG_047 "%s (%c:)"
+# t MSG_047 "Multiple Partitions"
 t MSG_048 "Rufus - išvalomi buferiai"
 t MSG_049 "Rufus - atšaukimas"
 
@@ -4687,7 +4696,7 @@ t MSG_043 "Error: %s"
 t MSG_044 "Muat turun fail"
 t MSG_045 "Peranti storan USB (Generik)"
 t MSG_046 "%s (Disk %d)"
-t MSG_047 "%s (%c:)"
+# t MSG_047 "Multiple Partitions"
 t MSG_048 "Rufus - Mengeflush buffer"
 t MSG_049 "Rufus - Dibatalkan"
 
@@ -5087,7 +5096,7 @@ t MSG_043 "Błąd: %s"
 t MSG_044 "Pobieranie pliku"
 t MSG_045 "Urządzenie pamięci masowej USB (Ogólny)"
 t MSG_046 "%s (Dysk %d)"
-t MSG_047 "%s (%c:)"
+# t MSG_047 "Multiple Partitions"
 t MSG_048 "Rufus - Czyszczenie buforów"
 t MSG_049 "Rufus - Anulowanie"
 
@@ -5490,7 +5499,7 @@ t MSG_043 "Erro: %s"
 t MSG_044 "Download do arquivo"
 t MSG_045 "Dispositivo de armazenamento USB (Genérico)"
 t MSG_046 "%s (Disco %d)"
-t MSG_047 "%s (%c:)"
+# t MSG_047 "Multiple Partitions"
 t MSG_048 "Rufus - Limpando os buffers"
 t MSG_049 "Rufus - Cancelamento"
 
@@ -5875,7 +5884,7 @@ t MSG_043 "Eroare: %s"
 t MSG_044 "Descărcare fişier"
 t MSG_045 "Unitate de stocare USB (generic)"
 t MSG_046 "%s (disc %d)"
-t MSG_047 "%s (%c:)"
+# t MSG_047 "Multiple Partitions"
 t MSG_048 "Rufus - Ştergere bufer"
 t MSG_049 "Rufus - Anulare"
 
@@ -6257,7 +6266,7 @@ t MSG_043 "Ошибка: %s"
 t MSG_044 "Загрузка файла"
 t MSG_045 "USB-устройство хранения данных"
 t MSG_046 "%s (Диск %d)"
-t MSG_047 "%s (%c:)"
+# t MSG_047 "Multiple Partitions"
 t MSG_048 "Буфер"
 t MSG_049 "Отмена"
 
@@ -6625,7 +6634,7 @@ t MSG_043 "Napaka: %s"
 t MSG_044 "Prenos datoteke"
 t MSG_045 "USB podatkovni nosilec (generičen)"
 t MSG_046 "%s (disk %d)"
-t MSG_047 "%s (%c:)"
+# t MSG_047 "Multiple Partitions"
 t MSG_048 "Rufus - izpiranje medpomnilnika"
 t MSG_049 "Rufus - preklic"
 
@@ -7021,7 +7030,7 @@ t MSG_043 "Error: %s"
 t MSG_044 "Descarga de archivo"
 t MSG_045 "Dispositivo de almacenamiento USB (Genérico)"
 t MSG_046 "%s (Disco %d)"
-t MSG_047 "%s (%c:)"
+# t MSG_047 "Multiple Partitions"
 t MSG_048 "Rufus - Purgando los búfers"
 t MSG_049 "Rufus - Cancelación"
 
@@ -7422,7 +7431,7 @@ t MSG_043 "Hata: %s"
 t MSG_044 "Dosya indirme"
 t MSG_045 "USB Depolama Aygıtı (Genel)"
 t MSG_046 "%s (Disk %d)"
-t MSG_047 "%s (%c:)"
+# t MSG_047 "Multiple Partitions"
 t MSG_048 "Rufus - Tamponlanıyor"
 t MSG_049 "Rufus - Vazgeçme"
 

src/drive.c

@@ -263,21 +263,22 @@ HANDLE GetLogicalHandle(DWORD DriveIndex, BOOL bWriteAccess, BOOL bLockDrive)
 }
 
 /*
- * Returns the first drive letter for a volume located on the drive identified by DriveIndex,
+ * Returns the drive letters for all volumes located on the drive identified by DriveIndex,
  * as well as the drive type. This is used as base for the 2 function calls that follow.
  */
-static BOOL _GetDriveLetterAndType(DWORD DriveIndex, char* drive_letter, UINT* drive_type)
+static BOOL _GetDriveLettersAndType(DWORD DriveIndex, char* drive_letters, UINT* drive_type)
 {
 	DWORD size;
 	BOOL r = FALSE;
 	STORAGE_DEVICE_NUMBER_REDEF device_number = {0};
 	HANDLE hDrive = INVALID_HANDLE_VALUE;
 	UINT _drive_type;
+	int i = 0;
 	char *drive, drives[26*4];	/* "D:\", "E:\", etc. */
 	char logical_drive[] = "\\\\.\\#:";
 
-	if (drive_letter != NULL)
+	if (drive_letters != NULL)
-		*drive_letter = ' ';
+		drive_letters[0] = 0;
 	if (drive_type != NULL)
 		*drive_type = DRIVE_UNKNOWN;
 	CheckDriveIndex(DriveIndex);
@@ -324,29 +325,31 @@ static BOOL _GetDriveLetterAndType(DWORD DriveIndex, char* drive_letter, UINT* d
 			uprintf("Could not get device number for device %s: %s\n",
 				logical_drive, WindowsErrorString());
 		} else if (device_number.DeviceNumber == DriveIndex) {
-			if (drive_letter != NULL)
+			if (drive_letters != NULL)
-				*drive_letter = *drive;
+				drive_letters[i++] = *drive;
+			// The drive type should be the same for all volumes, so we can overwrite
 			if (drive_type != NULL)
 				*drive_type = _drive_type;
-			break;
 		}
 	}
 
 out:
+	if (drive_letters != NULL)
+		drive_letters[i] = 0;
 	return r;
 }
 
 // Could have used a #define, but this is clearer
-BOOL GetDriveLetter(DWORD DriveIndex, char* drive_letter)
+BOOL GetDriveLetters(DWORD DriveIndex, char* drive_letters)
 {
-	return _GetDriveLetterAndType(DriveIndex, drive_letter, NULL);
+	return _GetDriveLettersAndType(DriveIndex, drive_letters, NULL);
 }
 
 // There's already a GetDriveType in the Windows API
 UINT GetDriveTypeFromIndex(DWORD DriveIndex)
 {
 	UINT drive_type;
-	_GetDriveLetterAndType(DriveIndex, NULL, &drive_type);
+	_GetDriveLettersAndType(DriveIndex, NULL, &drive_type);
 	return drive_type;
 }
 
@@ -380,14 +383,14 @@ char GetUnusedDriveLetter(void)
 	}
 
 out:
-	return (drive_letter>'Z')?' ':drive_letter;
+	return (drive_letter>'Z')?0:drive_letter;
 }
 
 /*
  * Return the drive letter and volume label
  * If the drive doesn't have a volume assigned, space is returned for the letter
  */
-BOOL GetDriveLabel(DWORD DriveIndex, char* letter, char** label)
+BOOL GetDriveLabel(DWORD DriveIndex, char* letters, char** label)
 {
 	HANDLE hPhysical;
 	DWORD size;
@@ -398,14 +401,15 @@ BOOL GetDriveLabel(DWORD DriveIndex, char* letter, char** label)
 
 	*label = STR_NO_LABEL;
 
-	if (!GetDriveLetter(DriveIndex, letter))
+	if (!GetDriveLetters(DriveIndex, letters))
 		return FALSE;
-	if (*letter == ' ') {
+	if (letters[0] == 0) {
 		// Drive without volume assigned - always enabled
 		return TRUE;
 	}
-	AutorunPath[0] = *letter;
+	// We only care about an autorun.inf if we have a single volume
-	wDrivePath[0] = *letter;
+	AutorunPath[0] = letters[0];
+	wDrivePath[0] = letters[0];
 
 	// Try to read an extended label from autorun first. Fallback to regular label if not found.
 	// In the case of card readers with no card, users can get an annoying popup asking them
@@ -414,11 +418,11 @@ BOOL GetDriveLabel(DWORD DriveIndex, char* letter, char** label)
 	if (DeviceIoControl(hPhysical, IOCTL_STORAGE_CHECK_VERIFY, NULL, 0, NULL, 0, &size, NULL))
 		AutorunLabel = get_token_data_file("label", AutorunPath);
 	else if (GetLastError() == ERROR_NOT_READY)
-		uprintf("Ignoring autorun.inf label for drive %c: %s\n", *letter,
+		uprintf("Ignoring autorun.inf label for drive %c: %s\n", letters[0],
 		(HRESULT_CODE(GetLastError()) == ERROR_NOT_READY)?"No media":WindowsErrorString());
 	safe_closehandle(hPhysical);
 	if (AutorunLabel != NULL) {
-		uprintf("Using autorun.inf label for drive %c: '%s'\n", *letter, AutorunLabel);
+		uprintf("Using autorun.inf label for drive %c: '%s'\n", letters[0], AutorunLabel);
 		strncpy(VolumeLabel, AutorunLabel, sizeof(VolumeLabel));
 		safe_free(AutorunLabel);
 		*label = VolumeLabel;
@@ -550,9 +554,9 @@ BOOL AnalyzePBR(HANDLE hLogicalVolume)
 /*
  * Fill the drive properties (size, FS, etc)
  */
-BOOL GetDrivePartitionData(DWORD DriveIndex, char* FileSystemName, DWORD FileSystemNameSize)
+int GetDrivePartitionData(DWORD DriveIndex, char* FileSystemName, DWORD FileSystemNameSize)
 {
-	BOOL r;
+	BOOL r, hasRufusExtra = FALSE;
 	HANDLE hPhysical;
 	DWORD size;
 	BYTE geometry[128], layout[4096], part_type;
@@ -574,14 +578,14 @@ BOOL GetDrivePartitionData(DWORD DriveIndex, char* FileSystemName, DWORD FileSys
 
 	hPhysical = GetPhysicalHandle(DriveIndex, FALSE, FALSE);
 	if (hPhysical == INVALID_HANDLE_VALUE)
-		return FALSE;
+		return 0;
 
 	r = DeviceIoControl(hPhysical, IOCTL_DISK_GET_DRIVE_GEOMETRY_EX,
 			NULL, 0, geometry, sizeof(geometry), &size, NULL);
 	if (!r || size <= 0) {
 		uprintf("Could not get geometry for drive 0x%02x: %s\n", DriveIndex, WindowsErrorString());
 		safe_closehandle(hPhysical);
-		return FALSE;
+		return 0;
 	}
 	SelectedDrive.DiskSize = DiskGeometry->DiskSize.QuadPart;
 	memcpy(&SelectedDrive.Geometry, &DiskGeometry->Geometry, sizeof(DISK_GEOMETRY));
@@ -593,7 +597,7 @@ BOOL GetDrivePartitionData(DWORD DriveIndex, char* FileSystemName, DWORD FileSys
 			NULL, 0, layout, sizeof(layout), &size, NULL );
 	if (!r || size <= 0) {
 		uprintf("Could not get layout for drive 0x%02x: %s\n", DriveIndex, WindowsErrorString());
-		return FALSE;
+		return 0;
 	}
 
 	switch (DriveLayout->PartitionStyle) {
@@ -618,6 +622,8 @@ BOOL GetDrivePartitionData(DWORD DriveIndex, char* FileSystemName, DWORD FileSys
 					DriveLayout->PartitionEntry[i].PartitionLength, DriveLayout->PartitionEntry[i].Mbr.HiddenSectors,
 					DriveLayout->PartitionEntry[i].Mbr.BootIndicator?"Yes":"No",
 					DriveLayout->PartitionEntry[i].Mbr.RecognizedPartition?"Yes":"No");
+				if (part_type == RUFUS_EXTRA_PARTITION_TYPE)	// This is a partition Rufus created => we can safely ignore it
+					hasRufusExtra = TRUE;
 				if (part_type == 0xee)	// Flag a protective MBR for non GPT platforms (XP)
 					SelectedDrive.has_protective_mbr = TRUE;
 			}
@@ -648,7 +654,9 @@ BOOL GetDrivePartitionData(DWORD DriveIndex, char* FileSystemName, DWORD FileSys
 	}
 	safe_closehandle(hPhysical);
 
-	return TRUE;
+	if (hasRufusExtra)
+		nb_partitions--;
+	return (int)nb_partitions;
 }
 
 /*

src/drive.h

@@ -29,7 +29,7 @@ HANDLE GetPhysicalHandle(DWORD DriveIndex, BOOL bWriteAccess, BOOL bLockDrive);
 char* GetLogicalName(DWORD DriveIndex, BOOL bKeepTrailingBackslash, BOOL bSilent);
 BOOL WaitForLogical(DWORD DriveIndex);
 HANDLE GetLogicalHandle(DWORD DriveIndex, BOOL bWriteAccess, BOOL bLockDrive);
-BOOL GetDriveLetter(DWORD DriveIndex, char* drive_letter);
+BOOL GetDriveLetters(DWORD DriveIndex, char* drive_letters);
 UINT GetDriveTypeFromIndex(DWORD DriveIndex);
 char GetUnusedDriveLetter(void);
 BOOL GetDriveLabel(DWORD DriveIndex, char* letter, char** label);
@@ -37,7 +37,7 @@ uint64_t GetDriveSize(DWORD DriveIndex);
 BOOL IsMediaPresent(DWORD DriveIndex);
 BOOL AnalyzeMBR(HANDLE hPhysicalDrive);
 BOOL AnalyzePBR(HANDLE hLogicalVolume);
-BOOL GetDrivePartitionData(DWORD DriveIndex, char* FileSystemName, DWORD FileSystemNameSize);
+int GetDrivePartitionData(DWORD DriveIndex, char* FileSystemName, DWORD FileSystemNameSize);
 BOOL UnmountVolume(HANDLE hDrive);
 BOOL MountVolume(char* drive_name, char *drive_guid);
 BOOL RemountVolume(char* drive_name);

src/format.c

@@ -1158,7 +1158,7 @@ DWORD WINAPI CloseFormatPromptThread(LPVOID param) {
 #define CHECK_FOR_USER_CANCEL 	if (IS_ERROR(FormatStatus)) goto out
 DWORD WINAPI FormatThread(LPVOID param)
 {
-	int r, pt, bt, fs, dt;
+	int i, r, pt, bt, fs, dt;
 	BOOL ret, use_large_fat32;
 	DWORD DriveIndex = (DWORD)(uintptr_t)param;
 	HANDLE hPhysicalDrive = INVALID_HANDLE_VALUE;
@@ -1166,6 +1166,7 @@ DWORD WINAPI FormatThread(LPVOID param)
 	SYSTEMTIME lt;
 	char *bb_msg, *guid_volume = NULL;
 	char drive_name[] = "?:\\";
+	char drive_letters[27];
 	char logfile[MAX_PATH], *userdir;
 	char wim_image[] = "?:\\sources\\install.wim";
 	char efi_dst[] = "?:\\efi\\boot\\bootx64.efi";
@@ -1189,23 +1190,30 @@ DWORD WINAPI FormatThread(LPVOID param)
 	}
 
 	// At this stage with have both a handle and a lock to the physical drive...
-	if (!GetDriveLetter(DriveIndex, &drive_name[0])) {
+	if (!GetDriveLetters(DriveIndex, drive_letters)) {
 		uprintf("Failed to get a drive letter\n");
 		FormatStatus = ERROR_SEVERITY_ERROR|FAC(FACILITY_STORAGE)|APPERR(ERROR_CANT_ASSIGN_LETTER);
 		goto out;
 	}
-	if (drive_name[0] == ' ') {
+	if (drive_letters[0] == 0) {
 		uprintf("No drive letter was assigned...\n");
 		drive_name[0] =  GetUnusedDriveLetter();
-		if (drive_name[0] == ' ') {
+		if (drive_name[0] == 0) {
 			uprintf("Could not find a suitable drive letter\n");
 			FormatStatus = ERROR_SEVERITY_ERROR|FAC(FACILITY_STORAGE)|APPERR(ERROR_CANT_ASSIGN_LETTER);
 			goto out;
 		}
-	} else if (!DeleteVolumeMountPointA(drive_name)) {
+	} else {
+		// Unmount all mounted volumes that belong to this drive
+		// Do it in reverse so that we always end on the first volume letter
+		for (i=(int)safe_strlen(drive_letters); i>0; i--) {
+			drive_name[0] = drive_letters[i-1];
+			if (!DeleteVolumeMountPointA(drive_name)) {
 				uprintf("Failed to delete mountpoint %s: %s\n", drive_name, WindowsErrorString());
 				// Try to continue. We will bail out if this causes an issue.
 			}
+		}
+	}
 	uprintf("Will use '%c:' as volume mountpoint\n", drive_name[0]);
 
 	// ...but we need a lock to the logical drive to be able to write anything to it

src/iso.c

@@ -693,10 +693,10 @@ int64_t ExtractISOFile(const char* iso, const char* iso_file, const char* dest_f
 {
 	size_t i;
 	ssize_t read_size;
-	int64_t file_length;
+	int64_t file_length, r = 0;
 	char buf[UDF_BLOCKSIZE];
 	DWORD buf_size, wr_size;
-	BOOL s, r = 0;
+	BOOL s;
 	iso9660_t* p_iso = NULL;
 	udf_t* p_udf = NULL; 
 	udf_dirent_t *p_udf_root = NULL, *p_udf_file = NULL;

src/rufus.c

@@ -387,7 +387,8 @@ static BOOL GetDriveInfo(int ComboIndex)
 	memset(&SelectedDrive, 0, sizeof(SelectedDrive));
 	SelectedDrive.DeviceNumber = (DWORD)ComboBox_GetItemData(hDeviceList, ComboIndex);
 
-	if (!GetDrivePartitionData(SelectedDrive.DeviceNumber, fs_type, sizeof(fs_type)))
+	SelectedDrive.nPartitions = GetDrivePartitionData(SelectedDrive.DeviceNumber, fs_type, sizeof(fs_type));
+	if (SelectedDrive.nPartitions == 0)
 		return FALSE;
 
 	if (!DefineClusterSizes()) {
@@ -639,6 +640,7 @@ static BOOL GetUSBDevices(DWORD devnum)
 	// The rest are the vendor UASP drivers I know of so far - list may be incomplete!
 	const char* usbstor_name[] = { "USBSTOR", "UASPSTOR", "VUSBSTOR", "EtronSTOR" };
 	const char* scsi_name = "SCSI";
+	char letter_name[] = " (?:)";
 	BOOL r, found = FALSE, is_SCSI, is_UASP;
 	HDEVINFO dev_info = NULL;
 	SP_DEVINFO_DATA dev_info_data;
@@ -652,7 +654,7 @@ static BOOL GetUSBDevices(DWORD devnum)
 	LONG maxwidth = 0;
 	RECT rect;
 	int s, score;
-	char drive_letter, *devid, *devid_list = NULL;
+	char drive_letters[27], *devid, *devid_list = NULL, entry_msg[128];
 	char *label, *entry, buffer[MAX_PATH], str[sizeof("0000:0000")+1];
 	uint16_t vid, pid;
 	GUID _GUID_DEVINTERFACE_DISK =			// only known to some...
@@ -816,7 +818,7 @@ static BOOL GetUSBDevices(DWORD devnum)
 				break;
 			}
 
-			if (GetDriveLabel(drive_index, &drive_letter, &label)) {
+			if (GetDriveLabel(drive_index, drive_letters, &label)) {
 				if ((!enable_HDDs) && ((score = IsHDD(drive_index, vid, pid, buffer)) > 0)) {
 					uprintf("Device eliminated because it was detected as an USB Hard Drive (score %d > 0)\n", score);
 					uprintf("If this device is not an USB Hard Drive, please e-mail the author of this application\n");
@@ -826,17 +828,28 @@ static BOOL GetUSBDevices(DWORD devnum)
 					break;
 				}
 
-				// Drive letter ' ' is returned for drives that don't have a volume assigned yet
+				// The empty string is returned for drives that don't have any volumes assigned
-				if (drive_letter == ' ') {
+				if (drive_letters[0] == 0) {
 					entry = lmprintf(MSG_046, label, device_number.DeviceNumber);
 				} else {
-					if (drive_letter == app_dir[0]) {
+					// We have multiple volumes assigned to the same device (multiple partitions)
-						uprintf("Removing %c: from the list: This is the disk from which " APPLICATION_NAME " is running!\n", drive_letter);
+					// If that is the case, use "Multiple Volumes" instead of the label
+					safe_strcpy(entry_msg, sizeof(entry_msg), ((drive_letters[0] != 0) && (drive_letters[1] != 0))?
+						lmprintf(MSG_047):label);
+					for (k=0; drive_letters[k]; k++) {
+						// Append all the drive letters we detected
+						letter_name[2] = drive_letters[k];
+						safe_strcat(entry_msg, sizeof(entry_msg), letter_name);
+						if (drive_letters[k] == app_dir[0]) break;
+					}
+					// Repeat as we need to break the outside loop
+					if (drive_letters[k] == app_dir[0]) {
+						uprintf("Removing %c: from the list: This is the disk from which " APPLICATION_NAME " is running!\n", app_dir[0]);
 						safe_closehandle(hDrive);
 						safe_free(devint_detail_data);
 						break;
 					}
-					entry = lmprintf(MSG_047, label, drive_letter);
+					entry = entry_msg;
 				}
 
 				// Must ensure that the combo box is UNSORTED for indexes to be the same
@@ -1380,9 +1393,9 @@ static BOOL BootCheck(void)
 		}
 		if ((SL_MAJOR(iso_report.sl_version) >= 5) && (iso_report.sl_version != embedded_sl_version[1])) {
 			// Unlike what was the case for v4 and earlier, Syslinux v5+ versions are INCOMPATIBLE with one another!
-			_chdirU(app_dir);
+			IGNORE_RETVAL(_chdirU(app_dir));
-			_mkdir(FILES_DIR);
+			IGNORE_RETVAL(_mkdir(FILES_DIR));
-			_chdir(FILES_DIR);
+			IGNORE_RETVAL(_chdir(FILES_DIR));
 			for (i=0; i<2; i++) {
 				// Check if we already have the relevant ldlinux_v#.##.sys & ldlinux_v#.##.bss files
 				static_sprintf(tmp, "%s-%s/%s.%s", syslinux, &iso_report.sl_version_str[1], ldlinux, ldlinux_ext[i]);
@@ -1403,7 +1416,7 @@ static BOOL BootCheck(void)
 					return FALSE;
 				for (i=0; i<2; i++) {
 					static_sprintf(tmp, "%s-%s", syslinux, &iso_report.sl_version_str[1]);
-					_mkdir(tmp);
+					IGNORE_RETVAL(_mkdir(tmp));
 					static_sprintf(tmp, "%s.%s %s", ldlinux, ldlinux_ext[i], iso_report.sl_version_str);
 					SetWindowTextU(hISOProgressDlg, lmprintf(MSG_085, tmp));
 					static_sprintf(tmp, "%s/%s-%s/%s.%s", FILES_URL, syslinux, &iso_report.sl_version_str[1], ldlinux, ldlinux_ext[i]);
@@ -1417,9 +1430,9 @@ static BOOL BootCheck(void)
 			}
 		}
 	} else if (dt == DT_SYSLINUX_V5) {
-		_chdirU(app_dir);
+		IGNORE_RETVAL(_chdirU(app_dir));
-		_mkdir(FILES_DIR);
+		IGNORE_RETVAL(_mkdir(FILES_DIR));
-		_chdir(FILES_DIR);
+		IGNORE_RETVAL(_chdir(FILES_DIR));
 		static_sprintf(tmp, "%s-%s/%s.%s", syslinux, &embedded_sl_version_str[1][1], ldlinux, ldlinux_ext[2]);
 		fd = fopenU(tmp, "rb");
 		if (fd != NULL) {
@@ -1435,7 +1448,7 @@ static BOOL BootCheck(void)
 				return FALSE;
 			if (r == IDYES) {
 				static_sprintf(tmp, "%s-%s", syslinux, &embedded_sl_version_str[1][1]);
-				_mkdir(tmp);
+				IGNORE_RETVAL(_mkdir(tmp));
 				static_sprintf(tmp, "%s/%s-%s/%s.%s", FILES_URL, syslinux, &embedded_sl_version_str[1][1], ldlinux, ldlinux_ext[2]);
 				SetWindowTextU(hISOProgressDlg, lmprintf(MSG_085, tmp));
 				SetWindowTextU(hISOFileName, tmp);
@@ -2037,6 +2050,11 @@ static INT_PTR CALLBACK MainCallback(HWND hDlg, UINT message, WPARAM wParam, LPA
 					format_op_in_progress = FALSE;
 					break;
 				}
+				if ((SelectedDrive.nPartitions > 1) && (MessageBoxU(hMainDialog, lmprintf(MSG_093),
+					lmprintf(MSG_094), MB_OKCANCEL|MB_ICONWARNING) == IDCANCEL)) {
+					format_op_in_progress = FALSE;
+					break;
+				}
 
 				// Disable all controls except cancel
 				EnableControls(FALSE);

src/rufus.h

@@ -196,6 +196,7 @@ typedef struct {
 	DWORD FirstSector;
 	char proposed_label[16];
 	int PartitionType;
+	int nPartitions;
 	int FSType;
 	BOOL has_protective_mbr;
 	BOOL has_mbr_uefi_marker;

src/rufus.rc

@@ -33,7 +33,7 @@ LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
 IDD_DIALOG DIALOGEX 12, 12, 206, 329
 STYLE DS_SETFONT | DS_MODALFRAME | DS_FIXEDSYS | DS_CENTER | WS_POPUP | WS_CAPTION | WS_SYSMENU
 EXSTYLE WS_EX_APPWINDOW
-CAPTION "Rufus v1.4.3.386"
+CAPTION "Rufus v1.4.3.387"
 FONT 8, "MS Shell Dlg", 400, 0, 0x1
 BEGIN
     DEFPUSHBUTTON   "Start",IDC_START,94,291,50,14
@@ -288,8 +288,8 @@ END
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 1,4,3,386
+ FILEVERSION 1,4,3,387
- PRODUCTVERSION 1,4,3,386
+ PRODUCTVERSION 1,4,3,387
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -306,13 +306,13 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "Akeo Consulting (http://akeo.ie)"
             VALUE "FileDescription", "Rufus"
-            VALUE "FileVersion", "1.4.3.386"
+            VALUE "FileVersion", "1.4.3.387"
             VALUE "InternalName", "Rufus"
             VALUE "LegalCopyright", "© 2011-2014 Pete Batard (GPL v3)"
             VALUE "LegalTrademarks", "http://www.gnu.org/copyleft/gpl.html"
             VALUE "OriginalFilename", "rufus.exe"
             VALUE "ProductName", "Rufus"
-            VALUE "ProductVersion", "1.4.3.386"
+            VALUE "ProductVersion", "1.4.3.387"
         END
     END
     BLOCK "VarFileInfo"

src/syslinux.c

@@ -104,7 +104,7 @@ BOOL InstallSyslinux(DWORD drive_index, char drive_letter)
 
 	/* Access a copy of the ldlinux.sys & ldlinux.bss resources (downloaded or embedded) */
 	if ((syslinux_ldlinux_len[0] != 0) && (syslinux_ldlinux_len[1] != 0)) {
-		_chdirU(app_dir);
+		IGNORE_RETVAL(_chdirU(app_dir));
 		for (i=0; i<2; i++) {
 			syslinux_ldlinux[i] = (unsigned char*) malloc(syslinux_ldlinux_len[i]);
 			if (syslinux_ldlinux[i] == NULL)
@@ -237,9 +237,9 @@ BOOL InstallSyslinux(DWORD drive_index, char drive_letter)
 	uprintf("Successfully wrote Syslinux boot record\n");
 
 	if (dt == DT_SYSLINUX_V5) {
-		_chdirU(app_dir);
+		IGNORE_RETVAL(_chdirU(app_dir));
 		static_sprintf(path, "%s/%s-%s", FILES_DIR, syslinux, &embedded_sl_version_str[1][1]);
-		_chdir(path);
+		IGNORE_RETVAL(_chdir(path));
 		static_sprintf(path, "%C:\\%s.%s", drive_letter, ldlinux, ldlinux_ext[2]);
 		fd = fopen(&path[3], "rb");
 		if (fd == NULL) {