中国DOS联盟

http://support.3com.com/infodeli/tools/nic/mba.htm
In the 3Com MBA Utility Disk v4.30 package, there is a directory named imgedit, and there is a tool called 3Com Boot Image Editor. With the help of the virtual floppy drive vfloppy, you can conveniently convert standard 1.44M and 2.88M floppy disk images into PXE-bootable image files.

Thanks dato!

I just tried to use winimage to make an image, but PXE can't boot. Why?

Also, I would like to ask, where can I download the three core files of MSDOS7.1? If I put these three files into the image, can I start it?

Generally, directly downloading the standard Win98 boot image from the internet and extracting its bootsect is okay. As for whether the command.com or io.sys can be directly replaced by the replacement method, it may not be possible.

BFI - Build Floppy Image is a convenient software to generate bootable software images at the command line.
http://www.nu2.nu/bfi/

A reference example:
.\bin\bfi -t=288 -f=ng_bd.img -o=COMMAND.COM -b=.\bootsect.bin .\NG_BD
Place command.com, io.sys, msdos.sys in the NG_BD directory and a bootsect, then you can use bfi to generate a bootable image.

Thanks, please provide the downloads of those files. BFI has been downloaded.

I use winimage and it can also achieve the effect of BFI, just without those three files.

I need pure DOS 7.1

I found the 7.1 version in the download area, but besides three files, there are many external commands.

I use 3COM, and this disk can't add GHOST because it's too big.

I want to ask, my original image file is of sys suffix, with a size of 2M. After modification, the size becomes 15.6M, and no matter how many files are inside and how large they are, even if it's empty, it's still 15.6M. Is there a way to make it smaller?

Do you want to do network ghost? There is a "GHOST Multicard Template" in http://dato.ys168.com, and there is a "build.rar" inside which has examples of using bif to generate corresponding network card drivers and different versions of DOS.

Thanks, don't know how to use it, alas………………