| DISK GENIUS Help |
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II. Notes for Running and using III. How to: 1. Backup or Restore partition table
a) To create a primary partition |
17.Rebuild MBR (Master Boot Record)
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Q. |
Introduction |
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Disk Genius is a powerful tool which not only allows you to manage your hard disk partitions, such as create partitions or delete partitions, but also allows you to hide partitions, format partitions, resize partitions and rebuild the lost partition table. So much as, it permits you to configure every parameter of the partition table. In addition,Disk Genius provides some other useful functions, such as backup partition table, recover MBR(Master Boot Record), and so on. |
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Notes for Running and using |
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You should run Disk Genius under pure MS DOS environment, because partition operations are independent of operating systems and very "low level". Additionally, functions such as rebuilding partition table and resizing partitions can only run under pure MS DOS environment. Especially the rebuilding partition table function would frequently run after WINDOWS operating system has been damaged. Of cause, if you only want to take a look on the partition information and do not write to hard disk, you can run Disk Genius under the MS DOS prompted window in WINDOWS 9x or WINDOWS ME. To execute Disk Genius, just type "DiskGen" at MS DOS command prompt. Copying all files of Disk Genius to a bootable floppy disk and running from it is a good idea. |
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Q. |
Backup or Restore partition table |
| A. | In order to backup your partition table to a file, press "F9" key or select "Backup" from "Tools" menu, then enter the filename you want backup to. To restore the partition table from a backup file, press "F10" key or select "Restore" from "Tools" menu. Disk Genius will display the partition table on screen after entering a filename. While you can confirm that the partition table is just which you want, you can apply the partition table by press "F8" key or select "Apply" from "Disk" menu. |
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Create partitions |
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a) To create a primary partition, you must select a free space (gray area) from the cylinder diagram first. Then press "Enter" key and input the size of the new partition and select if you want to create a DOS FAT partition. While you want to create a non-DOS partition, you will be prompted to set the partition type. For example, if you want to create Linux partition, you may set the type "83" for native partition or "82" for swap partition. Thirty five partition types are listed in the message window. Using Disk Genius, you can create four primary partitions on maximum. b) To create extended partition, after selecting a free space,press "F5" key or select "New Extended" from "Partition" menu. Finally, enter a size for the new extended partition. c) To create a logical partition, at first, please select the green area in the extended partition. Then press "Enter" key, thenceforth operation is similar to create primary partitions. Of cause, before creating logical partitions, you must create a extended partition first. Because logical partitions are involved in the extended partition. |
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Activate partition |
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Move cursor to the partition you want to activate, press "F7" key or select "Activate" from "Partition" menu. The partition type will turn red when the partition was activated. |
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Delete partitions |
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Move cursor to the partition you want to delete, press "Delete" key or "F6" key. |
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Hide partitions |
| A. | Move cursor to the partition you want to hide, press "F4" key. To unhide it, press "F4" key again. |
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Configure partition parameters |
| A. | Move cursor to the partition you want to configure, press "F11" key. A configuration dialog will be displayed on screen. Move cursor to the parameter you want to change. Then type its value. Select "OK" to complete the change or "Cancel" to give up. |
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Check parameters |
| A. | Disk Genius will automatically check all parameters when loading or updating partition table. To check it manually, just press "F12" key or select "Check" from "Tools" menu. |
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Update partition table |
| A. | While you completing all change on partition table and want to apply the change, press "F8" key or select "Apply" from "Disk" menu. Disk Genius will automatically check the parameters before writing to hard disk. |
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View any sectors |
| A. | You can view ANY sectors on your hard disk by Disk Genius. Press "Ctrl_R" key or select "View Sector" from "View" menu. The first sector of current partition will be displayed by default. To view other sectors, just set the position of the sectors. Use "Tab" key to move cursor to "CYL." (Cylinder), or "HEAD", or "SECT" (Sector) field then enter a value. The sector pointed by the cylinder, head and sector will be displayed immediately. Using "Page Up" or "Page Down" keys, you can view other sectors back and forth. In addition, you can save some of the sectors started from current sector into a file. |
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Change hard disk |
| A. | If you have second (or third) hard disk installed, the "harddisk #" item will be list under "Disk" menu while "#" represent the disk number. Just select this item if you want to do something on that hard disk. |
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Date back |
| A. | Assume you run Disk Genius and have updated the partition table. But you found something wrong with it. What could you do? Don't worry. "Date back" function will help you. For every writing operation, Disk Genius will save the old data to date back file "LOOKBACK.DAT" and "LOOKBACK.LBK" before overwriting sectors. That's, "LOOKBACK.DAT" and "LOOKBACK.LBK" are used to save the old data of all updated sectors of the LAST RUN. You can use this function to turn the partition table back to before the last run. "LOOKBACK.DAT" and "LOOKBACK.LBK" are saved in Disk Genius's directory. |
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Rebuild partition table |
| A. | If partition table was destroyed by virus or other reasons, this function can help you to rebuild the partition table by searching the boot record information of every partition. The searching process can run with "Automatic" mode or "Manual" mode. Automatic mode will automatically save every partition found. That's, you need not control the searching process. This mode is the same with most situation. While, manual mode allows you to select to "Save" or to "Skip" each partition Disk Genius found. When the partition table rebuilt by automatic mode is not correct, you can try manual mode. In searching process, the searched partitions will be displayed on screen in time. But Disk Genius will not automatically save the rebuild result when complete. So, you can search time after time till the correct partition table is rebuilt. The "Rebuild" function item is under "Tools" menu. |
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Quick format |
| A. | Disk Genius can format FAT or FAT32 partitions. Select "Format FAT(32)" from "Partition" menu to format currently selected partition. Before starting, you can change the default cluster size. After quick formatting, you will be asked to do a surface scan on the partition. According to your hard disk, if you can make sure that there are no bad sectors on it, you may simply press "Enter" key to skip the scan. |
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Resize partition |
| A. | This function tries to directly change the size of FAT or FAT32 partition. Select the partition you want to resize and select "Resize FAT(32)" function from "Partition" menu. Then enter a new size. Resize operation will be started. SUGGEST: a) Run WINDOWS disk scan program before resizing. b) BACKUP all important files before resizing! WARNING: Do NOT turn off or reboot your computer while resizing. Otherwise, all files on the resizing partition may be lost! |
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Clear Sectors |
| A. | Sometime, you delete all files in a partition and hope no one could recover them by any ways. Generally, you can format this partition. But it is trustless. Many times, it can be recovered. In fact, the "FORMAT" command does not really erase any data of the files. It only clears the FAT (File Allocation Table). So the deleted files can be recovered by some softwares. Disk Genius can fill all sectors on the partition with null characters. Then, the files on the partition will be erased really and truly and can't be recovered by anyone. To apply this function on currently selected partition, select "Erase Data" from "Tools" menu. WARNING: It is very dangerous if you select a wrong partition! So you must carefully and carefully. |
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Surface scan |
| A. | This function is used for checking bad sectors on a partition. It checks partitions not by "clusters" and doesn't labeled out the bad sectors on FAT(FAT32) partition. So it can scan any partitions besides FAT or FAT32. You can do the scan by "cylinders", by "heads" or by "sectors". If you select "by cylinders", Disk Genius will skip the bad cylinders it found and do not scan every head of the bad cylinders. So it is fast. If you select "by heads", Disk Genius will skip the bad heads it found and do not scan every sectors. So it is slow. If "by sectors", Disk Genius will check every sectors when it found a bad track (head). So it is slowest. While complete, a bad sectors list file "BADSECT.TXT" will be created. This function item is under "Tools" menu. |
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Rebuild MBR (Master Boot Record) |
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Use this function to manually rebuild the master boot
record (located on cylinder 0, head 0 andsector 1) when it was
destroyed and the computer couldn't boot from it. Disk Genius will check and rebuild the MBR automatically. This function item is under "Tools" menu. |
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