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Windows 2000 Server PHẦN 11

Phương pháp xác thực truy cập từ xa, bạn nên sử dụng nếu bạn có không có ý tưởng sẽ được sử dụng phần mềm máy khách và bạn muốn hỗ trợ mật khẩu đồng bằng văn bản? Phương pháp xác thực truy cập từ xa, bạn nên sử dụng nếu bạn cần | 724 Chapter 15 Performing System Recovery Functions Steps in the Boot Sequence 1. The boot sequence consists of the following steps 2. For the initial boot loader phase NTLDR switches the processor from real mode to 32-bit flat memory mode and starts the appropriate mini file system drivers. Mini file system drivers are used to support your computer s file systems and include FAT16 FAT32 and NTFS. 3. For the operating system selection phase the computer reads the BOOT.INI file. If you have configured your computer to dual-boot or multi-boot and Windows 2000 recognizes that you have choices a menu of operating systems that can be loaded is built. If you choose an operating system other than Windows 2000 the BOOTSECT.DOS file is used to load the alternate operating system and the Windows 2000 boot process terminates. If you choose a Windows 2000 operating system the Windows 2000 boot process continues. 4. If you choose a Windows 2000 operating system the NTDETECT.COM file is used to perform hardware detection. Any hardware that is detected is added to the Registry in the HKEY_LOCAL_MACHINE key. Some of the hardware that NTDETECT.COM will recognize includes communication and parallel ports the keyboard the floppy disk drive the mouse the SCSI adapter and the video adapter. 5. Control is passed to NTOSKRNL.EXE to start the kernel load process. Possible Errors during the Boot Sequence The following are some common causes for errors during the boot stage Missing or corrupt boot files If NTLDR BOOT.INI BOOTSECT.DOS NTDETECT.COM or NTOSKRNL.EXE is corrupt or missing by a virus or malicious intent the boot sequence will fail. You will see an error message that indicates which file is missing or corrupt. You can restore these files through the ERD which is covered later in this chapter. Copyright 2000 SYBEX Inc. Alameda CA www.sybex.com Understanding the Windows 2000 Boot Process 725 Improperly configured BoOt.INI file If you have made any changes to your disk configuration