msx-dos2 on msx8250 possible?

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By kees87y4

Supporter (9)

Аватар пользователя kees87y4

21-02-2020, 13:25

I have a philips 8250. I can run msx-dos1.
I want to run msx-dos2. I have been trying for hours but am giving up.
With disk-manager I make a new floppy. I select msx-dos 2.2 boot sector.
I copy msxdos2.sys and command2.sys on the floppy. It does not boot well. It boots up instead in msx-basic.
I also have a memory mapper 1024 KB cartridge.
Is it even possible to boot msx-dos2 on a msx8250? I do not have the msx-dos2 cartridge. Supposedly the cartridge has a ROM file. I have seen some ROM files on the internet with names like MDOS22V1.ROM, MDOS22V2.ROM, MDOS22V3.ROM.
Do I need to put these on the floppy as well? Or is it really not possible to run msx-dos2 with my setup?

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By Robosoft

Expert (73)

Аватар пользователя Robosoft

21-02-2020, 17:19

It is not possible with this setup. You need a dos2 cartridge or other solution (megaflashrom , carnivore2 etc) to run dos2.

By Jipe

Paragon (1376)

Аватар пользователя Jipe

21-02-2020, 19:52

you can make a msxdos2 with a flashrom scc or ascii cartridge

see :

By kees87y4

Supporter (9)

Аватар пользователя kees87y4

21-02-2020, 20:02

thanks for the answers....what a relieve to know...I was going nuts

By spacemoai1973

Master (165)

Аватар пользователя spacemoai1973

21-02-2020, 23:37

What most people don't realize is that MSX-DOS1 also requires a ROM (possibly in a cartridge). It's just that it's already included in MSX with a diskrive.

By Vampier

Prophet (2346)

Аватар пользователя Vampier

22-02-2020, 01:15

I even use MSXDOS2 on an NMS8220 (no disk drive just an MFR)

By ericb59

Paladin (939)

Аватар пользователя ericb59

22-02-2020, 07:27

Msx-Dos 2 is a two parts software
- Floppy MSX-Dos 2
- Rom MSX-Dos 2

Also, it requires 128K of Ram minimum

By kees87y4

Supporter (9)

Аватар пользователя kees87y4

22-02-2020, 08:52

Hello Vampier, what is an MFR? Mega flash rom?

By hamlet

Scribe (3042)

Аватар пользователя hamlet

22-02-2020, 09:02

The MFR or MFRSDSCC+512 is a Megaflashrom built and disributed by Manuel Pazos (
A very well designed product, but:
Of course there are now other SD solutions. If we start a discussion here, the first to respond are users who recommend Carnivore2, some high-level freaks who squeeze every drop out of the Gr8Net, and happy Spanish users who gave their right hand for a jackflash (and now claim to be able to do everything better and easier with their left).
In exact that order.
In any case, we recommend that you purchase one of these modules, a small overview can be found here.
We have had a sheet that did some better overview, anyone can insert this here? Pencioner?
Note: We have to do a wiki about comparison of the SD cartridges.

By kees87y4

Supporter (9)

Аватар пользователя kees87y4

22-02-2020, 09:15

Yes I have heard of these wonderful cartridges. But I have not bought it yet for 2 reasons. First I want to play games on my real msx in the most pure way.That is why I have the real msx and not use an emulator. I have gotten the thought in my head that these cartridges are such a cheat that it is not a pure experience anymore. Perhaps I am just crazy. Also I have never seen any of these cartridges second hand on the market. I am also a cheap bastard:-) I like the idea of buying second hand.

By Manuel

Ascended (16373)

Аватар пользователя Manuel

22-02-2020, 09:29

What kind of software do you want to run?

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