China DOS Union

The advantage of a hard disk partitioned with the dm tool is that there is no need to go through BIOS settings at startup. When loading dm, press the spacebar, and you can directly boot from a floppy disk. The disadvantage is that it cannot switch to CD-ROM boot.

Mr. Wengier's mdos71bd boot disk has a multi-boot system function (msdos7.1/hard disk/CD-ROM boot), but it does not support hard disks partitioned with dm.

This boot disk uses the boot files of Mr. Wengier's mdos71bd boot disk. The main content is copied from the msdos71 boot disk made by Shen Jie. It adds the pc20 tool of Ruanjing Studio, adds the boot function of dm (supports hard disks partitioned with dm), and realizes boot from floppy disk/CD-ROM/hard disk (no need for BIOS settings, and old motherboards that do not support CD-ROM boot can also boot from CD-ROM). It can directly enter the Windows 98 system. It can enter the pure DOS of Win2000/winxp.

Download address:
http://julon.8u8.com/tools/mdos71dm.rar

Also, a Chinese dm boot disk containing both Chinese and English versions of dm9.56 (multi-boot + dm boot + msdos71 tools, Pocket Dragon Chinese system + Pinyin input).

Download address:
http://julon.8u8.com/tools/dmddo.rar

The boot method of the mdos71bd boot disk is the best. It's just that the floppy disk boot time is a bit long, and I can't find the C drive I partitioned with dm. After being streamlined and modified, the speed has been accelerated.

The bug of the boot disk has been fixed, the Tianhui system has been removed, and the floppy disk space has been increased, so the virtual disk is no longer used. This makes the boot faster, and there is no need to extract files when calling files. It is more convenient to enter Windows. If Chinese system support is needed, you can boot the Pocket Dragon (xzl).

I've made another Chinese bootable disk that includes the Chinese and English bilingual versions of dm9.56. It's still based on multi-boot + dm boot. Some excellent tools are retained.
It uses the most compact Pocket Dragon Chinese character system (with Pocket Dragon Pinyin input method attached). After exiting the Chinese character system, you can enter the win9x system. It can boot to DOS of 2000 and XP. http://julon.8u8.com/tools/dmddo.rar

The function is pretty good, support

DM universal version, I have used it for many years. The greatest advantage I feel is that without BIOS setup, it can switch from hard disk to floppy disk boot. It's very convenient... In addition, the version that supports switching from hard disk to CD - ROM boot is being developed by Mr. Cheng Yi, and the experiment has been successful. I think it will be launched soon.

The low - level formatting program included in DM is much more advanced than many Low Level Format programs attached to BIOS. It can modify the interleave factor of the hard disk, and even can bring back to life some hard disks with problems in the 0th track.