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详细说明： Project Name: GRUB for DOS Definition: A GRUB build for DOS with extensions for disk drive emulation. Current Version: 0.2.0 Author: Tinybit(tinybit@163.net) File Format: DOS EXE executable Purpose: Launch GRUB boot loader from within DOS Circumstanced Use: in CONFIG.SYS or AUTOEXEC.BAT Ability: Boot any installed operating system on your PC Limitations: GRUB.EXE only runs in real mode DOS. It cannot run from a DOS BOX inside Windows. Besides, GRUB cannot run if EMM386.EXE in CONFIG.SYS line is loaded. Similarly it doe s not run if some TSR programs is running. Currently runs on MS-DOS 3.30, 4.0, 5.0, 6.0, 6.20. 6.21, 6.22, 7.0(Win95), 7.10(Win98), 8.0(WinME/NT/2000/XP), and FreeDOS(build 2029 and hopefully more future builds). Currently could not return to DOS after GRUB.EXE was started. Copyright(C): Tinybit(tinybit@163.net) License: GNU GPL(see file COPYING) source available as diff patches to the GNU GRUB release. See the shell script COMPILE for more info. WARRANTY: NO WARRANTY(see file COPYING) TO DO: Build for running on other DOS versions. Usage: GRUB [ --config-file=FILE ] The FILE, for example, can be (hd0,0)/boot/grub/menu.lst In CONFIG.SYS, the line looks like: install=c:\some\where\grub.exe --config-file=FILE If no options present, GRUB for DOS simply uses (hd0,0)/boot/grub/menu.lst as the configure file, if it exists. The partition (hd0,0) can be a Windows partition or a Linux partition, or any other partition type supported by GRUB. -------------------------------------------------------- FTP site: (temporarily) ftp://ftp.linuxeden.com/tinybit/ FTP site: (temporarily) ftp://ftp2.linuxeden.com/tools/ Web site: http://newdos.yginfo.net/grubdos.htm (Thanks to Wengier) Web site: http://sourceforge.net/projects/grub4dos/ (WinGRUB by bean) Web site: http://grub.linuxeden.com/ (scratchpad, mainly in Chinese) Update: Version 0.2.0 also brings out a new thing, GRUB for NTLDR, which could be used to boot into GRUB from the boot menu of Windows NT/2000/XP. Copy GRLDR to the root directory of drive C: of Windows NT/2000/XP and append to C:\BOOT.INI this line: C:\GRLDR="Start GRUB" That will be done. Update: GRUB for Linux is also introduced along with 0.2.0. You can boot grub using a linux loader KEXEC/LILO or another GRUB. To boot via Linux, use this pair of commands: kexec -l grub4lin kexec -e To boot via GRUB, use commands like the following: kernel (hd0,0)/grub4lin boot To boot via LILO, use these lines in lilo.conf: image=/boot/grub4lin label=grub4lin LOADLIN may encounter problems when loading grub4lin, because grub4lin requires some unchanged original BIOS interrupt vectors, but DOS has destroyed them, and loadlin does not recover them before it transfers control to grub4lin. -------------------------------------------------------- There is no full documentation in English for version 0.2.0 at present. Here are only some examples showing the usage of the disk emulation commands: 1. Emulates HD partition C: as floppy drive A: and boot win98 from C: map --read-only (hd0,0)+1 (fd0) chainloader (hd0,0)+1 rootnoverify (hd0) boot In the above example, (hd0,0) is drive C: with win98 on it. After win98 boot complete, you will find that A: contains all files of C:, and if you delete files in A:, the files in C: will also disappear. At the map command line, the notation (hdm,n)+1 is interpreted to represent the whole partition (hdm,n), not just the first sector of the partition. 2. Emulates HD partition C: as floppy drive A: and boot win98 from A: map --read-only (hd0,0)+1 (fd0) map --hook chainloader (fd0)+1 rootnoverify (fd0) boot After the "map --hook" command, the emulation takes effect instantly even in the GRUB command line. Note that the (fd0) in "chainloader (fd0)+1" is the emulated virtual floppy A:, not the real floppy diskette(because map is hooked now). 3. Emulates an image file as floppy drive A: and boot win98 from C: map --read-only (hd0,0)/floppy.img (fd0) chainloader (hd0,0)+1 rootnoverify (hd0) boot 4. Emulates an HD partition as the first hard disk and boot DOS from it: map --read-only (hd2,6)+1 (hd0) map --hook chainloader (hd0,0)+1 rootnoverify (hd0) boot In this example, (hd2,6)+1 represents an extended logical DOS partition of the third BIOS hard disk (hd2). If a DOS partition is used to emulate a hard disk, GRUB for DOS will first try to locate the partition table, usually 63 sectors ahead of the DOS partition. GRUB for DOS will refuse the emulation if the partition table is not there. 5. Emulates an image file as the first hard disk and boot DOS from it: map --read-only (hd0,0)/harddisk.img (hd0) chainloader (hd0,0)/harddisk.img rootnoverify (hd0) boot If an image file is used to emulate a hard disk, the image file must contain an MBR. In other word, the first sector of HARDDISK.IMG must contain the partition table of the emulated virtual hard disk. -------------------------------------------------------- Floppies/harddisks of any size can be emulated with GRUB for DOS 0.2.0. Image file must be contiguous, or else GRUB for DOS will refuse it. Type "help map" at the GRUB prompt to get a brief description of the command. The form map ... (fd?) is a floppy emulation, and the form map ... (hd?) is a hard disk emulation. When a HARD DISK emulation is used, better not start Windows for security reasons. Windows may even destroy all data and all information on all your real hard disks!!!!!!!! ...展开收缩
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