Boot Linux method, I know there is the following three types: Method 1: Guide floppy disk (1) Use mkbootdisk under Linux. (2) If the hard disk boot information is lost, you cannot enter the Linux system to boot the floppy disk. For RH, use the Redhat Linux CD to enter the Secure mode. When you ask if the Linux system in the hard disk is set to the current environment, "Yes", then The system enters the Linux environment of the hard disk, runs MkBootdisk, and makes a boot disk. (3) Take the same version of Linux boot floppy disk, modify "root = / dev / hdxx" in the syslinux.cfg file for your hdax, hdbx, .... also! Method 2: DOS mode is copied in the same directory of the first disc in the same directory of the hard disk: DosuTils directory: loadlin.exe isolinux directory: initrd.img, VMLinuz then build a batch file XXX in this directory. Bat: loadlin vmlinuz root = / dev / hdxx loadinglin vmlinuz initrd = initrd.img (HDXX represents your linux] Subregion! Specific HDA1, HDA2, ... you want to see the partition you installed.) Start to DOS (Do not load Other drivers, settings), enter that directory to execute a batch file, should be able to enter! Method 3: Use WindowsNT Loader (NT Boot Menu) if you have installed WindowsNT, 2000, XP, ... can be performed under Linux: DD if = / dev / hdxx = bootsect.lnx count = 1 Copy bootsect.lnx copy Go to C: /. Modify C: /Boot.ini, add a line of content, look like this: [Boot loader] Timeout = 10 default = Multi (0) Disk (0) RDisk (0) Partition (1) / Winnt [Operating Systems] Multi (0) DISK (0) RDisk (0) Partition (1) / WinNT = 'Microsoft Windows 2000 Professional' / FastDetect C: /BootSect.lnx='Red Hat 9 'Start NT (2000, XP ...) visible Select the menu!