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https://github.com/pbatard/rufus.git
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[format] added volume unmount and improve logic
* acquire a vomume handle and unmount the volume before anything else * remove the volume access check after partitioning - use a small delay instead
This commit is contained in:
Pete Batard
parent
78ad099bf9
commit
df7a0b1fc3
4 changed files with 64 additions and 65 deletions
105
src/format.c
105
src/format.c
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@ -164,7 +164,7 @@ static BOOL FormatDrive(char DriveLetter)
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uprintf("Using cluster size: %d bytes\n", ComboBox_GetItemData(hClusterSize, ComboBox_GetCurSel(hClusterSize)));
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format_percent = 0.0f;
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task_number = 0;
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fs_index = ComboBox_GetItemData(hFileSystem, ComboBox_GetCurSel(hFileSystem));
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fs_index = (int)ComboBox_GetItemData(hFileSystem, ComboBox_GetCurSel(hFileSystem));
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pfFormatEx(wDriveRoot, SelectedDrive.Geometry.MediaType, wFSType, wLabel,
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IsChecked(IDC_QUICKFORMAT), (ULONG)ComboBox_GetItemData(hClusterSize, ComboBox_GetCurSel(hClusterSize)),
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FormatExCallback);
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@ -338,7 +338,7 @@ void __cdecl FormatThread(void* param)
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HANDLE hLogicalVolume = INVALID_HANDLE_VALUE;
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char drive_name[] = "?:";
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char bb_msg[256];
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int i;
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int r;
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hPhysicalDrive = GetDriveHandle(num, NULL, TRUE, TRUE);
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if (hPhysicalDrive == INVALID_HANDLE_VALUE) {
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@ -347,45 +347,49 @@ void __cdecl FormatThread(void* param)
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}
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// At this stage with have both a handle and a lock to the physical drive...
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// ... but we can't write sectors that are part of a volume, even if we have
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// access to physical, unless we have a lock (which doesn't have to be write)
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// Also, having a volume handle allows us to unmount the volume
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hLogicalVolume = GetDriveHandle(num, drive_name, FALSE, TRUE);
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if (hLogicalVolume == INVALID_HANDLE_VALUE) {
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uprintf("Could not lock volume\n");
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FormatStatus = ERROR_SEVERITY_ERROR|FAC(FACILITY_STORAGE)|ERROR_OPEN_FAILED;
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goto out;
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}
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UnmountDrive(hLogicalVolume);
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if (IsChecked(IDC_BADBLOCKS)) {
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// ... but we can't write sectors that are part of a volume, even if we have
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// access to physical, unless we have a lock (which doesn't have to be write)
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hLogicalVolume = GetDriveHandle(num, drive_name, FALSE, TRUE);
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if (hLogicalVolume == INVALID_HANDLE_VALUE) {
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uprintf("Could not lock volume for badblock checks\n");
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FormatStatus = ERROR_SEVERITY_ERROR|FAC(FACILITY_STORAGE)|ERROR_OPEN_FAILED;
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goto out;
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}
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bb_retry:
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if (!BadBlocks(hPhysicalDrive, SelectedDrive.DiskSize,
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SelectedDrive.Geometry.BytesPerSector, BADBLOCKS_RW, &report)) {
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uprintf("Bad blocks check failed.\n");
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if (!FormatStatus)
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FormatStatus = ERROR_SEVERITY_ERROR|FAC(FACILITY_STORAGE)|
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APPERR(ERROR_BADBLOCKS_FAILURE);
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// TODO: should probably ClearMBR here as well
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goto out;
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}
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uprintf("Check completed, %u bad block%s found. (%d/%d/%d errors)\n",
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report.bb_count, (report.bb_count==1)?"":"s",
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report.num_read_errors, report.num_write_errors, report.num_corruption_errors);
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if (report.bb_count) {
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safe_sprintf(bb_msg, sizeof(bb_msg), "Check completed - %u bad block%s found:\n"
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" %d read errors\n %d write errors\n %d corruption errors",
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report.bb_count, (report.bb_count==1)?"":"s",
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report.num_read_errors, report.num_write_errors,
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report.num_corruption_errors);
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switch(MessageBoxA(hMainDialog, bb_msg, "Bad blocks check",
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MB_ABORTRETRYIGNORE|MB_ICONWARNING)) {
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case IDRETRY:
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goto bb_retry;
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case IDABORT:
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FormatStatus = ERROR_SEVERITY_ERROR|FAC(FACILITY_STORAGE)|ERROR_CANCELLED;
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do {
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if (!BadBlocks(hPhysicalDrive, SelectedDrive.DiskSize,
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SelectedDrive.Geometry.BytesPerSector, BADBLOCKS_RW, &report)) {
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uprintf("Bad blocks check failed.\n");
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if (!FormatStatus)
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FormatStatus = ERROR_SEVERITY_ERROR|FAC(FACILITY_STORAGE)|
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APPERR(ERROR_BADBLOCKS_FAILURE);
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// TODO: should probably ClearMBR here as well
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goto out;
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}
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uprintf("Check completed, %u bad block%s found. (%d/%d/%d errors)\n",
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report.bb_count, (report.bb_count==1)?"":"s",
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report.num_read_errors, report.num_write_errors, report.num_corruption_errors);
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r = IDOK;
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if (report.bb_count) {
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safe_sprintf(bb_msg, sizeof(bb_msg), "Check completed - %u bad block%s found:\n"
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" %d read errors\n %d write errors\n %d corruption errors",
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report.bb_count, (report.bb_count==1)?"":"s",
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report.num_read_errors, report.num_write_errors,
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report.num_corruption_errors);
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r = MessageBoxA(hMainDialog, bb_msg, "Bad blocks check", MB_ABORTRETRYIGNORE|MB_ICONWARNING);
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}
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} while (r == IDRETRY);
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if (r == IDABORT) {
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FormatStatus = ERROR_SEVERITY_ERROR|FAC(FACILITY_STORAGE)|ERROR_CANCELLED;
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goto out;
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}
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safe_unlockclose(hLogicalVolume);
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}
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// Close the (unmounted) volume before formatting, but keep the lock
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safe_closehandle(hLogicalVolume);
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// TODO: do we have to sleep here for unmount to be effective?
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// Especially after destructive badblocks test, you must zero the MBR completely
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// before repartitioning. Else, all kind of bad things happen
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@ -402,21 +406,8 @@ bb_retry:
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}
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UpdateProgress(OP_PARTITION, -1.0f);
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// Make sure we can access the volume again before trying to format it
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for (i=0; i<10; i++) {
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Sleep(500);
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hLogicalVolume = GetDriveHandle(num, drive_name, FALSE, FALSE);
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if (hLogicalVolume != INVALID_HANDLE_VALUE) {
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break;
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}
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}
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if (i >= 10) {
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uprintf("Could not access volume after partitioning\n");
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FormatStatus = ERROR_SEVERITY_ERROR|FAC(FACILITY_STORAGE)|ERROR_OPEN_FAILED;
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goto out;
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}
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// Handle needs to be closed for FormatEx to be happy - we keep a lock though
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safe_closehandle(hLogicalVolume);
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// Add a small delay after partitioning to be safe
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Sleep(500);
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if (!FormatDrive(drive_name[0])) {
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// Error will be set by FormatDrive() in FormatStatus
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@ -424,11 +415,6 @@ bb_retry:
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goto out;
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}
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// TODO: Enable compression on NTFS
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// TODO: optionally disable indexing on NTFS
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// TODO: use progress bar during MBR/FSBR/MSDOS copy
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// TODO: unlock/remount trick to make the volume reappear
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PrintStatus(0, "Writing master boot record...\n");
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if (!WriteMBR(hPhysicalDrive)) {
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// Errorcode has already been set
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@ -437,8 +423,9 @@ bb_retry:
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UpdateProgress(OP_FIX_MBR, -1.0f);
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if (IsChecked(IDC_DOS)) {
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// We must have a lock to modify the volume boot record...
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hLogicalVolume = GetDriveHandle(num, drive_name, TRUE, TRUE);
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// We still have a lock, which we need to modify the volume boot record
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// => no need to reacquire the lock...
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hLogicalVolume = GetDriveHandle(num, drive_name, TRUE, FALSE);
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if (hLogicalVolume == INVALID_HANDLE_VALUE) {
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uprintf("Could not re-mount volume for partition boot record access\n");
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FormatStatus = ERROR_SEVERITY_ERROR|FAC(FACILITY_STORAGE)|ERROR_OPEN_FAILED;
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@ -449,7 +436,7 @@ bb_retry:
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// Errorcode has already been set
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goto out;
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}
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// ... and we must have relinquished that lock to write the MS-DOS files
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// ...but we must have relinquished that lock to write the MS-DOS files
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safe_unlockclose(hLogicalVolume);
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UpdateProgress(OP_DOS, -1.0f);
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PrintStatus(0, "Copying MS-DOS files...\n");
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