中国DOS联盟

When I use diskmu to make the CD-ROM multi-boot, the romdos cannot boot! I wonder if it is because the disk formats of msdos and romdos are different!
Hope all the experts can correct me! I will test it with single boot. I will tell you the result next time I go online!
Both pcdos and msdos can boot the machine under multi-boot!

I can't. I've made boot disks with various DOS versions.
But some motherboards may have incompatibility issues.
Like the boot CD I made has a few unusable ones on my own machine (prompting I/O error), but it works in a virtual machine. On others' machines, some are usable and some are also a few unusable.
Also, it's best to clarify the specific situation of your problem. How can't it boot? What's the error message?

Direct screen! Just tested again! Single boot! It works! To be accurate, I will test multiple times again! ko20010214

Can you introduce the boot disk you used! Maybe someone in the forum wants it! I also want to see it!

Please provide the specific content about the startup disk you want to introduce so that I can help you translate it.