GRUB for DOS - Bridging DOS/Windows to Unix/Linux

GRUB4DOS is an universal boot loader based on GNU GRUB. It can boot off DOS/LINUX, or via Windows boot manager/syslinux/lilo, or from MBR/CD. It also has builtin BIOS disk emulation, ATAPI CDROM driver, etc.

GRUB for DOS is free and open-source software, released under the GNU General Public License.

News: This project now has yet another new home at https://gna.org/projects/grub4dos/.

View the source code: http://svn.gna.org/viewcvs/grub4dos/trunk/.

Download the binary build: http://download.gna.org/grub4dos/. (Note: chs is for Chinese Simplified Edition.)

^{View or contribute DOCs at: http://grub4dos.sourceforge.net/wiki}

^{New Our support forum in English has been set up at http://www.boot-land.net/forums/?showforum=66}

^{You can boot the GRUB4DOS boot-loader/boot-manager in different manners:}

^{(1) Run GRUB.EXE at the DOS prompt or in AUTOEXEC.BAT
(2) In CONFIG.SYS of DOS/Windows9x, use DEVICE=GRUB.EXE or INSTALL=GRUB.EXE or SHELL=GRUB.EXE
(3) In BOOT.INI of Windows NT/2K/XP, use C:\GRLDR="GRUB" (there should be a backslash between C: and GRLDR)
(4) Under Linux, use "kexec -l grub.exe" and then "kexec -e"
(5) In syslinux.cfg, use "kernel grub.exe"
(6) Under GNU GRUB, use "kernel (DEVICE)/PATH/grub.exe"
(7) In lilo.conf, use "image=/boot/grub.exe"
All above methods won't touch the MBR nor the boot area of any partition.
(8) Boot from MBR(or floppy) by installing boot sectors onto it with the DOS/LINUX utility bootlace.com.}

^{When GRUB4DOS gets running, you can boot other OSes:}

^{(1) Boot Linux kernel with "kernel (DEVICE)/PATH/vmlinuz"
(2) Boot MS-DOS7+ kernel with "chainloader (DEVICE)/io.sys"
(3) Boot FreeDOS kernel with "chainloader (DEVICE)/kernel.sys"
(4) Boot NTLDR of Windows NT/2K/XP with "chainloader (DEVICE)/ntldr"
(5) Boot CMLDR of Windows NT/2K/XP with "chainloader (DEVICE)/cmldr"
(6) Boot other OSes with "chainloader (DEVICE)+1"
(7) Boot DOS/Windows9x disk image files with the memdrive feature.
(8) Boot Smart Boot Manager with the memdrive feature(SBM can boot CD-ROMs).}

^{README.txt has more details.}

Download

^{See Attachments below. Under Linux, the unzip utility can do:}

^{unzip grub4dos-*.zip}

^{Under DOS/Windows, any unzip utility will do.}

Useful Links

^{Here are some useful resources about GRUB for DOS and WINGRUB.}

• ^{GNU GRUB The homepage of the original GRUB.}
• ^{grub4dos.sf.net This is the project home page at http://sourceforge.net/}
• ^{http://sarovar.org/projects/grub4dos/ This is the project home page at http://sarovar.org/}
• ^{Original GRUB for DOS homepage}
• ^{http://grub4dos.freespaces.com/}
• ^{http://freshmeat.net/projects/grub4dos/}
• ^{GRUB for DOS scratchpad (in Chinese)}
• ^{United DOS Forum (in Chinese)}
• ^{Sysoft Forum (in Chinese)}

^{Here are some documentations for GRUB for DOS.}

• ^{http://marc.herbert.free.fr/linux/win2linstall.html}
• ^{http://xpt.sourceforge.net/techdocs/nix/disk/boot/boot04-GrubForDos/index.html}
• ^{http://xpt.sourceforge.net/techdocs/nix/disk/boot/boot04-GrubForDos/ar01s02.html}

^{Other Download Sites}

^{http://sarovar.org/projects/grub4dos/}

^{http://grub4dos.sourceforge.net/}

http://grub4dos.freespaces.com/

GRUB for DOS scratchpad(in Chinese)

^{Other Resources}

^{Screen shot showing the new features}