Description: Install Windows first, then install Linux. The first partition format can be NTFS. Do not install the LILO boot program in the MBR (Main Boot Record) location, but installed under the first partition (ie / boot) in the Linux partition. Prepare a Linux system boot disk, a blank floppy disk. If you do not install the linux system, you can not install LILO in the MBR position, you can follow the steps: 1 T MSDOS / DEV / FD0 / MNT / FLOPPY mount floppy disk for the current user 4, determine Linux boot sector position more /etc/lilo.conf output content: boot = / dev / hda1 (can determine the guiding sector, specifically The situation will be different depending on the situation of each person) Map = / boot / map install = / boot / boot.b prompt time = 50 image = boot / vmlinuz-2.4.2-2 label = linux root = / dev / hda1 Read-Only 5, use DD programs (Note Space) / bin / dd if = / dev / hda1 of = / mnt / floppy / bootsect.lnx BS = 512 count = 1 Copy bootstrap to floppy disk 6, uninstall floppy disk: umount / dev / fd0 7, restart, enter the Windows system 8, edit the boot.ini file, add: c: /bootsect.lnx= "Red Hat Linux 9" and copy the bootsect.lnx file to the C-root directory (do not Copy to the folder) After restarting, the Windows boot menu appears "Red Hat Linux 9" option, select it to enter the Linux system. Note: Since the LILO boot process is installed during the installation of the Linux system automatically searches for the currently installed system (such as Windows), it is recommended to keep the LILO automatic search result and set the DOS to the default option. This allows you to select from the Linux boot menu, you can also choose to enter Linux from the Windows boot menu. Reference: "Windows XP Professional Use and Development Detailed" (US) Robert Cowart Electronic Industry Publishing House Publishing