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[core] try not to clear MBR/GPT sectors higher than the lowest partition
* This ensures that a drive can be reformatted without error after writing an image such as super_grub2_disk_x86_64_efi_2.02s4.iso
This commit is contained in:
Pete Batard
parent
2f88286dc1
commit
91eec034b1
4 changed files with 29 additions and 17 deletions
18
src/drive.c
18
src/drive.c
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@ -108,7 +108,7 @@ BOOL GetAutoMount(BOOL* enabled)
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*/
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#define CheckDriveIndex(DriveIndex) do { \
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if ((DriveIndex < DRIVE_INDEX_MIN) || (DriveIndex > DRIVE_INDEX_MAX)) { \
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uprintf("ERROR: Bad index value. Please check the code!\n"); \
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uprintf("ERROR: Bad index value %d. Please check the code!", DriveIndex); \
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goto out; \
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} \
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DriveIndex -= DRIVE_INDEX_MIN; } while (0)
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@ -691,6 +691,7 @@ BOOL GetDrivePartitionData(DWORD DriveIndex, char* FileSystemName, DWORD FileSys
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}
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SelectedDrive.DiskSize = DiskGeometry->DiskSize.QuadPart;
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SelectedDrive.SectorSize = DiskGeometry->Geometry.BytesPerSector;
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SelectedDrive.FirstDataSector = MAXDWORD;
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if (SelectedDrive.SectorSize < 512) {
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suprintf("Warning: Drive 0x%02x reports a sector size of %d - Correcting to 512 bytes.\n",
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DriveIndex, SelectedDrive.SectorSize);
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@ -741,12 +742,15 @@ BOOL GetDrivePartitionData(DWORD DriveIndex, char* FileSystemName, DWORD FileSys
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}
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}
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// NB: MinGW's gcc 4.9.2 broke "%lld" printout on XP so we use the inttypes.h "PRI##" qualifiers
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suprintf(" Type: %s (0x%02x)\r\n Size: %s (%" PRIi64 " bytes)\r\n Start Sector: %d, Boot: %s, Recognized: %s\n",
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suprintf(" Type: %s (0x%02x)\r\n Size: %s (%" PRIi64 " bytes)\r\n Start Sector: %" PRIi64 ", Boot: %s, Recognized: %s\n",
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((part_type==0x07)&&(FileSystemName[0]!=0))?FileSystemName:GetPartitionType(part_type), part_type,
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SizeToHumanReadable(DriveLayout->PartitionEntry[i].PartitionLength.QuadPart, TRUE, FALSE),
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DriveLayout->PartitionEntry[i].PartitionLength.QuadPart, DriveLayout->PartitionEntry[i].Mbr.HiddenSectors,
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DriveLayout->PartitionEntry[i].PartitionLength.QuadPart,
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DriveLayout->PartitionEntry[i].StartingOffset.QuadPart / SelectedDrive.SectorSize,
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DriveLayout->PartitionEntry[i].Mbr.BootIndicator?"Yes":"No",
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DriveLayout->PartitionEntry[i].Mbr.RecognizedPartition?"Yes":"No");
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SelectedDrive.FirstDataSector = min(SelectedDrive.FirstDataSector,
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(DWORD)(DriveLayout->PartitionEntry[i].StartingOffset.QuadPart / SelectedDrive.SectorSize));
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if ((part_type == RUFUS_EXTRA_PARTITION_TYPE) || (isUefiNtfs))
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// This is a partition Rufus created => we can safely ignore it
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--SelectedDrive.nPartitions;
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@ -768,9 +772,13 @@ BOOL GetDrivePartitionData(DWORD DriveIndex, char* FileSystemName, DWORD FileSys
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suprintf("Partition %d:\r\n Type: %s\r\n Name: '%s'\n", i+1,
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GuidToString(&DriveLayout->PartitionEntry[i].Gpt.PartitionType), tmp);
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suprintf(" ID: %s\r\n Size: %s (%" PRIi64 " bytes)\r\n Start Sector: %" PRIi64 ", Attributes: 0x%016" PRIX64 "\n",
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GuidToString(&DriveLayout->PartitionEntry[i].Gpt.PartitionId), SizeToHumanReadable(DriveLayout->PartitionEntry[i].PartitionLength.QuadPart, TRUE, FALSE),
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DriveLayout->PartitionEntry[i].PartitionLength, DriveLayout->PartitionEntry[i].StartingOffset.QuadPart / DiskGeometry->Geometry.BytesPerSector,
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GuidToString(&DriveLayout->PartitionEntry[i].Gpt.PartitionId),
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SizeToHumanReadable(DriveLayout->PartitionEntry[i].PartitionLength.QuadPart, TRUE, FALSE),
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DriveLayout->PartitionEntry[i].PartitionLength,
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DriveLayout->PartitionEntry[i].StartingOffset.QuadPart / SelectedDrive.SectorSize,
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DriveLayout->PartitionEntry[i].Gpt.Attributes);
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SelectedDrive.FirstDataSector = min(SelectedDrive.FirstDataSector,
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(DWORD)(DriveLayout->PartitionEntry[i].StartingOffset.QuadPart / SelectedDrive.SectorSize));
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// Don't register the partitions that we don't care about destroying
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if ( (strcmp(tmp, "UEFI:NTFS") == 0) ||
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(CompareGUID(&DriveLayout->PartitionEntry[i].Gpt.PartitionType, &PARTITION_MSFT_RESERVED_GUID)) ||
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@ -61,7 +61,7 @@ typedef struct {
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DWORD DeviceNumber;
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DWORD SectorsPerTrack;
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DWORD SectorSize;
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DWORD FirstSector;
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DWORD FirstDataSector;
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MEDIA_TYPE MediaType;
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int PartitionType;
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int nPartitions; // number of partitions we actually care about
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16
src/format.c
16
src/format.c
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@ -808,7 +808,7 @@ out:
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static BOOL ClearMBRGPT(HANDLE hPhysicalDrive, LONGLONG DiskSize, DWORD SectorSize, BOOL add1MB)
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{
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BOOL r = FALSE;
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uint64_t i, last_sector = DiskSize/SectorSize;
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uint64_t i, last_sector = DiskSize/SectorSize, num_sectors_to_clear;
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unsigned char* pBuf = (unsigned char*) calloc(SectorSize, 1);
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PrintInfoDebug(0, MSG_224);
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@ -820,10 +820,14 @@ static BOOL ClearMBRGPT(HANDLE hPhysicalDrive, LONGLONG DiskSize, DWORD SectorSi
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// beginning and 33 at the end. We bump these values to MAX_SECTORS_TO_CLEAR each end to help
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// with reluctant access to large drive.
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// Must clear at least 1MB + the PBR for large FAT32 format to work on a large drive
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// Don't do it if Large FAT32 is not enabled, as it can take time for slow drives.
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uprintf("Erasing %d sectors", (add1MB?2048:0)+MAX_SECTORS_TO_CLEAR);
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for (i=0; i<((add1MB?2048:0)+MAX_SECTORS_TO_CLEAR); i++) {
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// We try to clear at least 1MB + the PBR when Large FAT32 is selected (add1MB), but
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// don't do it otherwise, as it seems unnecessary and may take time for slow drives.
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// Also, for various reasons (one of which being that Windows seems to have issues
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// with GPT drives that contain a lot of small partitions) we try not not to clear
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// sectors further than the lowest partition already residing on the disk.
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num_sectors_to_clear = min(SelectedDrive.FirstDataSector, (add1MB ? 2048 : 0) + MAX_SECTORS_TO_CLEAR);
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uprintf("Erasing %d sectors", num_sectors_to_clear);
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for (i=0; i<num_sectors_to_clear; i++) {
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if ((IS_ERROR(FormatStatus)) || (write_sectors(hPhysicalDrive, SectorSize, i, 1, pBuf) != SectorSize)) {
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goto out;
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}
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@ -1678,7 +1682,7 @@ DWORD WINAPI FormatThread(void* param)
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// Note, Microsoft's way of cleaning partitions (IOCTL_DISK_CREATE_DISK, which is what we apply
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// in InitializeDisk) is *NOT ENOUGH* to reset a disk and can render it inoperable for partitioning
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// or formatting under Windows. See https://github.com/pbatard/rufus/issues/759 for details.
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if ((!ClearMBRGPT(hPhysicalDrive, SelectedDrive.DiskSize, SelectedDrive.SectorSize, FALSE)) || (!InitializeDisk(hPhysicalDrive)) ) {
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if ((!ClearMBRGPT(hPhysicalDrive, SelectedDrive.DiskSize, SelectedDrive.SectorSize, use_large_fat32)) || (!InitializeDisk(hPhysicalDrive)) ) {
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uprintf("Could not reset partitions\n");
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FormatStatus = ERROR_SEVERITY_ERROR|FAC(FACILITY_STORAGE)|ERROR_PARTITION_FAILURE;
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goto out;
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10
src/rufus.rc
10
src/rufus.rc
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@ -33,7 +33,7 @@ LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
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IDD_DIALOG DIALOGEX 12, 12, 242, 376
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STYLE DS_SETFONT | DS_MODALFRAME | DS_CENTER | WS_MINIMIZEBOX | WS_POPUP | WS_CAPTION | WS_SYSMENU
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EXSTYLE WS_EX_ACCEPTFILES
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CAPTION "Rufus 2.10.966"
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CAPTION "Rufus 2.10.967"
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FONT 8, "Segoe UI Symbol", 400, 0, 0x0
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BEGIN
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LTEXT "Device",IDS_DEVICE_TXT,9,6,200,8
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@ -320,8 +320,8 @@ END
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//
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VS_VERSION_INFO VERSIONINFO
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FILEVERSION 2,10,966,0
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PRODUCTVERSION 2,10,966,0
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FILEVERSION 2,10,967,0
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PRODUCTVERSION 2,10,967,0
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FILEFLAGSMASK 0x3fL
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#ifdef _DEBUG
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FILEFLAGS 0x1L
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@ -338,13 +338,13 @@ BEGIN
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BEGIN
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VALUE "CompanyName", "Akeo Consulting (http://akeo.ie)"
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VALUE "FileDescription", "Rufus"
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VALUE "FileVersion", "2.10.966"
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VALUE "FileVersion", "2.10.967"
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VALUE "InternalName", "Rufus"
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VALUE "LegalCopyright", "© 2011-2016 Pete Batard (GPL v3)"
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VALUE "LegalTrademarks", "http://www.gnu.org/copyleft/gpl.html"
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VALUE "OriginalFilename", "rufus.exe"
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VALUE "ProductName", "Rufus"
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VALUE "ProductVersion", "2.10.966"
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VALUE "ProductVersion", "2.10.967"
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END
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END
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BLOCK "VarFileInfo"
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