Creating a VM in VirtualBox to run the Plan 9 operating system is pretty straightforward.
Create a new virtual machine of type "Other" and version "Other/Unknown", then click "Next".
![](https://blog.cauwersin.com/wp-content/uploads/2019/01/plan9vbox1.png)
Select a memory size of your choice. This could be in a range from 32 MB to what your host is able to serve. In our example we select 1 GB of RAM.
![](https://blog.cauwersin.com/wp-content/uploads/2019/01/plan8vbox2.png)
Create a hard disk ...
![](https://blog.cauwersin.com/wp-content/uploads/2019/01/plan9vbox3.png)
Select image file type for hard disk ...
![](https://blog.cauwersin.com/wp-content/uploads/2019/01/plan9vbox4.png)
Select allocation type for the hard disk ...
![](https://blog.cauwersin.com/wp-content/uploads/2019/01/plan9vbox5.png)
An select the size of the hard disk. Select something between 250MB and some several GB. In our example we chose 2 GB.
![](https://blog.cauwersin.com/wp-content/uploads/2019/01/plan9vbox6.png)
After the virtual machine is created go to the settings of the virtual machine and select the Plan 9 CD image, which you can download here.
![](https://blog.cauwersin.com/wp-content/uploads/2019/01/plan9vbox7.png)
That's it. Now you are ready to run the Plan 9 installer in VirtualBox.