Home Page Forums MAME MAME The MAME OS installs instructions thread

Mac OS from scratch, on MAME 0.232+ (or a recent Git pull). (post 1/2)

Prereqs: the Apple Legacy Recovery CD-ROM, which you can get from Macintosh Garden. WARNING: Internet Archive has a version of the CD which does not work properly - it boots, but the file association with the .scr scripts doesn't work.

First, create a hard disk image. I'll give instructions for one that's around 500 MB, but you can go up to at least 1 GB without MacOS getting upset.
For an uncompressed CHD, enter chdman createhd -c none -chs 1023,63,16 -o myhdd.chd. If you're on Linux, BSD, or modern macOS, you can easily create a non-CHD raw image with dd if=/dev/zero of=myhdd.hdv bs=1000000 count=500.

Second, start MAME with the hard disk image you just created and the Legacy Recovery CD-ROM mounted on the Mac IIci driver: mame maciici -ramsize 8M -hard1 myhdd.chd -cdrom "Apple Legacy Recovery Oct 1999.iso" (use myhdd.hdv instead if you chose that route to create the image).

The system will start up and you'll see a Finder desktop like this:


Double-click the "Legacy Recovery" icon:


And then double-click "Disk Utilities" and then "Formatting Software":


Next double-click "Drive Setup 1.5":


Click your hard disk image, which will show as "<not initialized>" and then click the "Initialize.." button:


When this warning comes up, you can pick "Custom Setup..." if you know what you're doing and want to partition the hard disk in some special way, or just click "Initialize" to get a single partition the full size of the disk:


You should get this success:

MacOS from scratch (post 2/2)

Select File -> Quit to exit Drive Setup, and close the "Formatting Software" and "Disk Utilities" windows.


Double-click the "Mac OS" folder and then the folder for the System version you wish to install. I chose System 7.1.1 here as a good choice - it's reasonably up-to-date, but doesn't use a ton of RAM like 7.5, and runs all the way back to the Macintosh Plus. (If you are unsure what versions will work on a particular model, double-click the "System Software by CPU" folder and then navigate to the model you'd like to run).


Double-click the "Net Install.scr" file to launch Disk Copy and mount all of the installation disk images.


Click "Agree". After a few moments the installer will launch. This will look different depending on the version you pick, my screenshots here are for System 7.1.1.


Click Ok to get to the main installer screen (for some versions you may go directly here):


The defaults are usually OK. Make sure it's "Macintosh Family system software" or "System Software for all Macs" or something like that (the phrasing differs per System version) to ensure the resulting hard disk can boot on any supported Mac.


Once the installer is done, you should see this success:


Choose "Quit", and then choose "Shut Down" from the "Special" menu to cleanly shut down the system:


Quit MAME and then restart it without the Legacy Recovery CD-ROM mounted. It should boot up into your installed System version:

Reminder: this thread is for OS install guides only. Posting questions here may result in a ban, please create a new thread for support issues instead.

Installing OS/2 Warp 3 in pc9821ap2

Notes at the time of writing:
- Bleeding edge or upcoming MAME 0.272.
- Doesn't work in plain pc9821 (kernel panic during install), do not bother in anything beyond pc9821ce2 (will make use of PCI features, assuming you even get there)

1. Enable IDE BIOS in Machine Configuration thru TAB menu (step eventually to be removed)

2. Create a chdman HDD,
3. Startup the machine

4. You will be greeted with an █ █ OS/2 prompt then this, which just means to swap os/2 warp 3 with Disk 1 in Drive A then strike enter key


5. Loading from floppy drive, with an extra more laconical "loading" screen afterwards


6. Once done, OS/2 will ask to insert installation floppy again, and CD-Rom if it isn't already


7. Ask for user to select between Basic or Advanced configuration. The HDD partition is currently unformatted so need to choose Advanced here


8. Select 1 for formatting the HDD with one contiguous partition.


9. Partitioning complete, remove and reinsert the Install Disk media (?), then at "SYSTEM SHUTDOWN" soft reset the machine


10. Now redo step 4, until you reach this, select 1 if one partition is used


11. Asks you if you want the normal PC-98 letter scheme (1, A: will be HDD) or the more canonical DOS/V schema (where A: is floppy and C: is HDD)


12. install phase 1


13. At the end of it, will ask for removing floppy drive then strike enter -> "SYSTEM SHUTDOWN" -> soft reset


At this point once rebooted OS/2 will ask for the usual device select and what OS parts to install, at the time of this writing those screens are broken so delaying this (trivial) part for later.

Installing OS/2 Warp 3 in pc9821ap2 (part 2).
Press ESC to return back to a previous step.

14. Device select.
The ones on top row are Code Page and JIS arrangement
middle row is serial support (yes), keyboard (98 keys), graphic adapter (PEGC at 256 colors)
Bottom row is APM (none), PCMCIA (no), CD-ROM, Printer (do not install default printer), Music adapter (PC-9821 A Mate), SCSI (no).
ETA: at current time there's a bug that will list CD-ROM as その他 (others), eventually leading to the media missing when installed. Going in CD select and select PC CD-101 should fix this inconvenient.



Most of the stuff not automatically detected isn't supported at the time of this writing, so just click on bottom left button to go on.

15. OS component select. Bottom right box is available space (top) vs. required (bottom).
Pressing (R) button will go "Recommended", which gets rid of most fonts packages and マルチメディアのソフトウェアのサポート (Multimedia Software Support), (A) button will install everything. Going R then re-enabling the extra Multimedia pack will trim down installation to 38-ish MB.
Press (I) button to install.


16. "Expansion Options". Not sure what this setting does, the other two are always greyed out (open preference then modem service options?). Press left button to continue.


17. Ready to be greeted with the OS/2 install progress bar.


18. Once done, it will prompt to this screen, that suggests to change system defaults. Press left button to go "End" and soft reset.




19. Finally ready to use the OS