OK, Step 5 gets a little confusing for someone who hasn't played with Virtualbox before.
If you need serial support, you need to check the check box "Enable Serial Port", and if you need two ports, go to the "Port 2" tab and uncheck the same box. This is optional: Next to go the "Serial Ports" page. I don't know if DOS can access the internet, but this is the setting you would need to perform for any virtual machine to access the internet and the network. Go to the "Network" tab and choose "Bridged Adapter", then choose your network adapter. Next go to the "Audio" page and make sure it is set to SoundBlaster 16. In the windows that pops up, click "Leave Empty". Next go to the "Storage" page and click on the "Add Controller" button. I used 8 MB, but you can use pretty much any amount above the red. Next go to the "Display" page and set the amount of video memory. Go to the "System" page and click on the "Acceleration" tab. (I renamed mine DOS because I already had one nme DOS 6.22) To know which CPU you have, on Windows, you can open Control Panel -> System and Security -> System -> Processor.Right click on the virtual machine you just created and click settings.
If you don't know how to install OS on VM, you can go to Guide for installing Ubuntu in VirtualBox on Windows.
One last thing you need to do is to have an 64 bit OS to install on the created VM. After this, restart the computer and you will see the 64 bit OS option when you create new virtual machine.
By default they are disabled, you need to update them to Enabled. You can enable this by going to the BIOS settings, usually when you start your computer, press F12 and then it will go into BIOS mode, there you can find the config setting " Virtualization Technology" and vt-d feature. The next thing you need to do is to enable hardware virtualization.
But one necessary condition is that you have a 64 bit processor. If you use the "Create VM" wizard of the VirtualBox graphical user interface (see the section called “Creating your first virtual machine”), VirtualBox will automatically use the correct settings for each selected 64-bit operating system type.īased on the documentation, VirtualBox allows to install 64 bit OS even if you have a 32 bit host OS installed. In addition, for 64-bit Windows guests, you should make sure that the VM uses the Intel networking device, since there is no 64-bit driver support for the AMD PCNet card see the section called “Virtual networking hardware”. See the section called “" Advanced" tab”. This is especially true for 64-bit Windows VMs.
On any host, you should enable the I/O APIC for virtual machines that you intend to use in 64-bit mode. On 64-bit hosts (which typically come with hardware virtualization support), 64-bit guest operating systems are always supported regardless of settings, so you can simply install a 64-bit operating system in the guest.
Since supporting 64 bits on 32-bit hosts incurs additional overhead, VirtualBox only enables this support upon explicit request. If you want to use 64-bit guest support on a 32-bit host operating system, you must also select a 64-bit operating system for the particular VM. You must enable hardware virtualization for the particular VM for which you want 64-bit support software virtualization is not supported for 64-bit VMs. You need a 64-bit processor with hardware virtualization support (see the section called “ Hardware vs. VirtualBox supports 64-bit guest operating systems, even on 32-bit host operating systems, provided that the following conditions are met: Here is the official documentation about 64 bit OS: To allow installing 64 bit OS on VirtualBox. But sometimes, 64 bit OS is wanted for specific uses such as running platform specific tests. By default, VirtualBox only allows to install 32 bit OS on it.