First, download the ISO file, save in the Windows partition any directory; instance: My ISO is placed in the third partition (FAT32 primary partition) / redhat directory, three ISO file names are disk1.iso, disk2.iso, DISK3.ISO II, use the Winiso tool to take the first disk Dosutils directory COPY to the Windows partition; instance: My dosutils is placed in the E: / redhat directory; three, by pure DOS into the dosutils directory, and execute autoboot.bat; Operating instructions can be done, pay attention to a few points: 1. RedHat9 hard disk installation does not support graphics interface; (If you don't have problems, I have not intentionally tried); 3, engage in the device name under Linux and Windows under the partition: General: First, Second, Second, II, II, II, II, I Third, four partitions correspond to Linux equipment / DEV / HDA1, / DEV / HDA2, / DEV / HDA3, / DEV / HDA4, the first hard disk extension partition first, second, three ... extension partition corresponding Linux Next / DEV / HDA5, / DEV / HDA6, / DEV / HDA7; if it is the second hard disk, the above device name is replaced by / dev / hdb1, / dev / hda2 ... should be noted, do not put Windows Underwinding Device Names Under Linux, because there is more than one hard disk or partitioning in a hard disk, the partitioning tool is interlaced, Linux is just naming the device according to the order of the partition, so The drive letter under Windows will no longer have actual meaning.