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90 lines
3.3 KiB
Markdown
90 lines
3.3 KiB
Markdown
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---
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keywords: ["OS/8", "PDP-8", SIMH, 1970s, 1971]
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image: ./OS8-SIMH-3.webp
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description: 'We can run ! OS/8 on the SIMH PDP-8 emulator. First, we need to download the ! OS/8 kit. You can download the kit needed to run ! OS/8 on the SIMH PDP-8 emulator from the "SIMH Legacy" website:'
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sidebar_position: 1
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sidebar_label: "! OS/8 Unix on SIMH"
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---
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# How to install ! OS/8 on SIMH?
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We can run [! OS/8](/1970s/1971/os8) on the SIMH PDP-8 emulator. First, we need to download the ! OS/8 kit.
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## Downloads
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You can download the kit needed to run ! OS/8 on the SIMH PDP-8 emulator from the ["SIMH Legacy" website](http://simh.trailing-edge.com/):
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- [! OS/8 kit](http://simh.trailing-edge.com/kits/os8swre.tar.Z)
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If you are on Windows, you may need to install additional software such as [7-Zip](https://www.7-zip.org/) to extract the kit.
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## Using ! OS/8
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:::tip
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If you have not already installed SIMH PDP-8 emulator, see [the VirtualHub Setup tutorial on how to do so](https://setup.virtualhub.eu.org/simh-pdp8/) on Linux and Windows.
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:::
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Extract the kit you downloaded. Inside you will find two folders. Open the folder named `Disks`. Inside, you will find two files. Create a folder somewhere to store the files for this VM, and move the file named `os8_rx.dsk` into it.
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Now we will create a config file for our VM. Create a text file called `pdp8.ini` with the following content in the VM folder:
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```ini
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attach rx0 os8_rx.dsk
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boot rx0
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```
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Now open a terminal and move to the VM folder. Run the following command to start the emulator:
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```bash
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pdp8
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```
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After the emulator starts, you can enter `DIR` to see a list of files available:
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That's it! We used ! OS/8. We can create a shell script to make it easy to launch the VM. Create a file called `OS8.sh` with the following content:
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```bash
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#!/bin/bash
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pdp8
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```
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Now make the file executable:
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```bash
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chmod +x OS8.sh
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```
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Now you can start the VM using the shell script. For example, on KDE you can right-click the file and choose `Run in Konsole` or on GNOME, where you can right-click the file and choose `Run as executable`. The VM will start.
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See the [manuals section](/1970s/1971/os8/#manuals) on the [main ! OS/8 page](/1970s/1971/os8/) to learn how to use it.
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### Windows
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:::tip
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You should use Linux. If you don’t know how to install a Linux distro, see [our tutorials on how to install Kubuntu](https://setup.virtualhub.eu.org/tag/os/), a beginner-friendly distro.
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:::
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On Windows, you need to place the `PDP8.exe` file you downloaded in [this tutorial](https://setup.virtualhub.eu.org/simh-pdp8#windows) in the VM folder. Then you can follow the above tutorial as usual. The shell script will not work on Windows. You need to rename it to `OS8.bat`. Then you can double-click the file to launch the VM, no need to make it executable.
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## Credits
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- The disk image and other files used above are from a kit available on [SimH "Classic" website](http://simh.trailing-edge.com/).
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## Video tutorial
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Do you want to follow the tutorial by watching a video? We will post a video on our [YouTube channel](https://www.youtube.com/@virtua1hub) soon.
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Archives of this tutorial may be available on [Wayback Machine](https://web.archive.org/web/*/https://virtualhub.eu.org/1970s/1971/os8/simh/).
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