Raspberry Pi (1): Simulating the Macintosh II Operating System

I saw someone on the Internet simulating the Macintosh operating system on the Raspberry Pi. I felt that it was amazing. I decided to install the emulator myself. I missed the PC that had a graphical interface in the DOS era. I used VNC to connect to the Raspberry Pi desktop. After the installation, I can see the 256-color Macintosh desktop, which is really amazing. This article will introduce how to install the simulator of the Macintosh operating system on the Raspberry Pi system.


(1) Download and Unzip
First download the main program mac.7z for Macintosh II from the following website:
https://www.novaspirit.com/2017/03/28/running-mac-os-7-on-raspberry-pi -with-color/


Download the Macintosh ROM file at http://hampa.ch/pub/software/ROM/Macintosh%2068K/ and the 
file name is  9779D2C4 - Macintosh II.7z . 

I downloaded these two files from the webpage and placed them in the /home/pi/Downloads directory. Once you have these two files, you can start the installation:
$ pwd
/home/pi 
confirms whether the current directory location is in /home/pi, creates a mac directory, and copies the file to the /home/pi/rom directory.
$ mkdir mac
$ cp ./Downloads/mac.7z ./mac
$ cp ./Downloads/9779D2C4\ -\ Macintosh\ II.7z ./mac
Then you need to extract the .7z file. If you don't have a 7-zip program, you can install p7zip first. The instructions are as follows:
$ sudo apt-get install p7zip
Unzip, use the -d parameter
$ cd mac
$ p7zip -d mac.7z
$ p7zip -d 9779D2C4\ -\ Macintosh\ II.7z
After unzipping, change the file name: the original rom is lowercase, remember to change to uppercase after the name change.....  very important!!
$ mv 9779D2C4\ -\ Macintosh\ II.rom MacII.ROM
If the subtitle name is not changed to uppercase, the following error screen will appear:

(2) 建立 mac Disk
$ sh ./mkmacdisk.sh
In the process, you need to enter two parameters. The first one is the name of the Disk, named mac, and the space is 200MB.
Enter the name of the disk: mac
Enter the size of disk in MB (ie: 100): 200
At this point, there will be a file of mac.dsk, as shown below:

Change the minivmac to an executable using the chmod +x command:
$ chmod +x minivmac

(3) Install the main program and system
Execute the Macintosh simulation main program:
$ ./minivmax
After the previous instruction is executed, you can see the following screen:

Open the file management window and go to the /home/pi/mac/sys 7 directory as shown below:

Press the left button of install 1.image and drag to the right window. You will see the following screen:

After pressing [OK], the following window screen appears, and then the file manager is returned to the previous directory /home/pi/mac, and the previously created disk file is dragged from the left window to the right.

After dragging the past, the following screen appears:

Press [install] to continue the installation and the following screen appears:

Wait until "Please insert the disk: Install 2" appears, go back to the file manager, go to the /home/pi/mac/sys 7 directory, and continue to drag install 2.image to the right window. When you need to insert the Tidbits Disk, drag the Tidbits.image file from the left to the right window.

Then drag the Printing.image and Fonts.image files to the installation and continue to install. Finally, drag the Install 1.image file and the installation is complete.

Press [Quit], the following screen appears, and then press [Restart].

After rebooting, just like when you execute ./minivmac, drag the mac.dsk file in the /home/pi/mac directory to the right, or execute the following command:
$ ./minivmac mac.dsk
You can see the desktop of the Macintosh you miss.

However, this picture is black and white. You can change the color by continuing the following steps. Go back to the Macintosh desktop and find the [Sys7.5 V7.5.3 CD Inst] icon with a floppy disk, open it twice.

The folder window appears, find the [Installer] program, click twice to execute, the welcome window will appear as shown below, press [Continue].

After the following screen appears, select the [Custom Install] option from the drop-down menu at the top left, and the following screen appears:

[System Software] Just check the first item [System Software for this Macintosh]:

All other check, press [Install]:

Continue to wait for the installation to complete, after completion, the reboot reminder window appears:

After rebooting, after a short period of time to build the desktop, there is a toolbar at the bottom left, in the red box pattern, press the left mouse button, you can see the resolution can choose [256 Grays] and [256 Colors].

Select [256 Colors], you can see the font and color of the window, all are colored:

The Macintosh operating system has been installed here.

In the past, in the student era, the DOS operating system of IBM PC, or later Windows 3.1, still had a nostalgic feeling for the Macintosh operating system. This is one of the important foundations that Apple will continue to have a bright performance in the market share of personal computers or notebook computers.

[Reference]

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