Windows2000 of Secret Weapons (II.)

DiskProbe issues to be noted with disk editing tools

How to deal with a machine that can't run Windows2000?

As of now, the operation described is the method of DiskProbe using the Repair tool under the premise that Windows2000 can run. What should windows2000 do if it does not run, or it does not work in normal ways?

1. If there is a problem with the master boot record, you can start the DOS with the floppy drive or the optical drive and make sure that you have the FDISK command file, and then execute: FDISK/MBR, which is the unconditional write master boot record.

2. If you can start from Safe mode, you can use the fixboot command in the Recovery Console. Use this command to see the help file for the Recovery Console.

3. You can start the command line tool CMD First, and then perform the repair work.

4. If you have another working computer, you can hook up the problematic hard drive to it and fix it.

5. Use other tools for repairs, such as the Debug tool, but this will have to be backed up in advance or correctly filled in the master boot record.

Second, diskprobe under what conditions can not use?

1. Because DiskProbe does not support FAT32 file system, so your Windows2000 file system is FAT32, when the display of partition information on the box, the FAT32 partition will be displayed as "Unknown partition (Unknown)". However, FAT16 and NTFS can be displayed correctly.

2. This tool is not available for dynamic disk systems. The so-called dynamic disk, does not mean that the common type of active hard disk. It is a disk array or a disk group. Common combination forms are: striped, mirrored, or RAID-5. This was originally for the pursuit of high-speed access, two or more hard drives as a way to use a hard disk, at this time, each hard disk is responsible for the storage of all the access to a certain number of points, of course, faster. The disadvantage is that the cost is too high, and as long as one of the hard disk damage, all the data on the hard disk can not be used, is the real "crash"! To improve the reliability of this type of device, you can use two or more groups in parallel. Even if there is damage in a group, you can use a group that is not damaged, of course the price is higher.

Three, fault tolerant fault-tolerant problem

If a "volume" (Logical drive) is established using WindowsNT, an ft (fault tolerant fault-tolerant) bit is set in the partition table, which is related to the HKEY_LOCAL_MACHINE\SYSTEM\Disk subkey value in the registry. However, in a multiple-boot system, the FT bit is not allowed on volumes that are not NTFS systems. In addition, Windows 2000 allows the original windowsnt with an FT-bit volume to be upgraded to a dynamic disk using an external program.

Iv. NTLDR Documents

If the primary partition is FAT16, and an extended partition is in NTFS format, be aware of a file called Ntldr, which is a file that is set to system S, Hidden H, and read only R three properties when the partition is not normal. At this point you can use floppy disk to start the machine, in the DOS mode to change the properties of the Ntldr file, requires the boot floppy has the corresponding DOS external command. You can then execute the following command:

A:\dos\attrib-s-h-r C:\ntldr

The above command can remove the S, H, R properties. If you add these properties, you can perform:

A:\dos\attrib +s +h +r C:\ntldr

The screen can be prompted with the assumption that other (FAT16 primary and extended partitions) are normal, but NTLDR files are corrupted or missing:

NTLDR is missing

Press any key to restart

If the primary partition is also an NTFS method, the above question displays the following message:

NTLDR is missing

Press Ctrl+alt+del to restart

The presence of this information means that the contents of the boot code and boot sector are normal, and the problem is likely to be in the Ntldr file. If you do not see the message above, the problem may be in the boot code or in the boot sector.

V. Boot sectors that can be backed up or restored using the DiskProbe tool have

A. Primary partitions

B. Logical volumes within the extended partition (logical drives)

C. Individual boot sectors within the extended partition

D. Volumes for various dynamic disks. For example: spanned, striped, mirrored, or RAID-5, and so on.

Six, boot sector (or partition table) backup

For insurance purposes, you should back up the boot sector (or partitioned table) information to a file and save it on a quality floppy disk, and the DiskProbe tool can use long file names, which are recommended for use in sector and partition table information to facilitate identification and recovery. This tool can also be used in windows9.x systems. But there are certain limitations. The reason is that in windows9.x, access to the physical sector of the disk must use the INT13 interrupt in the BIOS, but in order to prevent a virus attack system, in Windows2000, access to the physical sector of the disk has been used in an alternative way, and the INT13 is no longer interrupted. Even so, the basic functionality is still available, and I have verified it on one computer, and I do have the ability to display and back up sector information (the write operation is not validated because it is too dangerous).

In the Windows2000 support tool, the disk Editing section provides a very detailed English help file, which is very large. File name: Dskprtrb.doc. Location is within the directory where the support tool is installed. There are some more valuable things, interested friends can refer to.