for booting the system with ISO image files For those who don't have a floppy drive installed, most of them will choose a virtual floppy drive, but unfortunately the capacity of the virtual floppy drive is too small, so there are some restrictions on the function. ISOEMU is a more interesting software. After installation, you can boot the system with the ISO image file on the hard disk, so you don't have to use the disk when installing Linux. The principle is to use GRUP to boot the ISO file on the hard disk. Of course, this ISO file is still created as a virtual CD-ROM to boot the system. It supports FAT32 and NTFS file systems, but only supports access under pure DOS, that is, based on INT13h. Disk access. The role of each file in the ISOEMU package ISOEMU is completely free, and friends who need it can download it from here, and release the downloaded compressed package. Here are 5 files. The functions of each file are as follows: IELDR: The main program of ISOEMU Loader. Isoemu.ini: IELDR configuration file. Isogrub.iso: A bootable ISO image file provided by the software developer. This file is very small, only 1.3MB. Eltorito.sys: The optical drive driver, in conjunction with mscdex.exe, can access the virtual CD-ROM created by ISOEMU under pure DOS. ReaderME.txt: Readme file. Booting the system with the ISO image file If you are using the Windows 2000/XP operating system, you can use the NTLDR menu to load the IELDR. The steps are as follows: Step 1, release the program file and copy the IELDR file to the root directory of the C drive. The purpose is to add ISOEMU to the OSLoader of Windows 2000/XP; copy the two files of isoemu.ini and isogrub.iso to the root directory of the C drive. Step 2, modify the boot.ini file
Open the Boot.ini file in the root directory of the C drive with Notepad, add the following content in the last line, of course you can also enter other content: c:\\IELDR="From ISO image file boot". Step 3, modify the iseemu.ini file
By default, ISOEMU will start the built-in isogrub.iso image file boot system, of course we can also start other ISO image files, but must the last line of the iseemu.ini file Make changes, note that you can only use the 8.3 file format, otherwise it will not be recognized correctly. With the help of the contents of the isogurb.iso file, you can add some common DOS external commands or third-party tools through WinISO and other software, and then save them again. Restart the system, you can see the newly added "boot from ISO image file" option in the boot menu, you can use the isogrub.iso image file to boot the system, the next operation will not say more. But it should be noted that ISOEMU is still a virtual operation after all, so we don't have to expect too much speed. Rich Shell Operations Before the ISO image file is booted, press the Alt key to enter the ISOEMU shell mode, or the error will automatically enter the Shell mode for other reasons. Here, we can use the corresponding command to get higher control permissions: HELP: View help information. DATE: Displays the current date and time information for the local computer. CLR: Set the screen color. CD: Change the current directory. CLS: Clear screen. DIR or LS: These two commands have the same effect. They all list the files in the current directory. Different colors are displayed here. Blue indicates folders, white indicates normal files, and green indicates executable files. DRV: Replace the drive letter. The ISOEMU virtual disk number is 0xee. RUN: You can directly run the files in the ISO image file. BOOT: Add parameters to start other media. For example, hdd is booted from the hard disk, fdd parameters can be booted from the floppy drive, and cdrom can be booted from the CD. LH: Load the Diskemu.bin image file in the high-end memory, and the INT88H interrupt is called. REBOOT: Skip the memory detection process and quickly reboot the system.