Forward USB hardware that is connected to a specific physical USB port of my pc to Oracle VM Virtualbox. VirtualBox - Connect CD Drive and USB Ports - Duration: 2:38. How to use a serial port in VirtualBox (Win XP guest, Ubuntu host)? Posted on 2011-03-15 by matt. Configure your VirtualBox virtual machine to have a serial port. For that, use the following settings in the configuration dialog for your VM. 5 thoughts on “ How to use a serial port in VirtualBox (Win XP guest, Ubuntu host)?

Virtualbox allows each VM to have two serial ports. I tried everything under the sun to get this to work on the first of these ports (Settings Serial Ports Port 1 tabbed page). Eventually I removed the check mark from 'Enable Serial Port' on port 1 and then tried Port 2 instead.
I have a Macbook pro running El Capitan. I have windows 10 on my Virtualbox. The problem comes in when I want to use a usb port from windows. I've tried everything i could think of and spent hours looking over forums on this site but i can't figure out how to make it work!

Active30 days ago

I'm having trouble for a few weeks now trying to access the serial port of my computer when working on the guest OS Windows XP Pro via VirtualBox. The host OS is Ubuntu 10.04 LTS and I'm using VirtualBox 5.0.18. In its settings, I've set up the serial port as on this screenshot:

..but then I can't run the virtual machine:

I've already asked the VirtualBox forum but they replied it was more a Ubuntu problem than a VB one, so I'm asking for help here!

The thing I'm trying to do is to back up an old device (from the early 2000s or late 1990s), which back-up software can only be opened on Windows. I've managed to install and open it on my XP guest OS, but it cannot communicate with the peripheral device.

Excuse me if I'm not always intelligible, I'm not used to run Ubuntu and I'm French, so my English may not be perfect!

Thanks in advance though :)

Lucas

kelvinelove

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LucasLucas

3 Answers

Your user is not in the group that has access the serial port. You can either run Virtualbox as root (Not recommended ), or add your user to the group.

You might have to logout and login again to make this work.

Cheers

Bram KoertBram Koert

First check the actual permissions on your host system. Something like:

~ ls -l /dev/ttyS0

Mine is:

crw-rw---- 1 root dialout 4, 64 2016-05-24 07:34:52 /dev/ttyS0

This means thay either I need to be root (first 'rw-' from left) or I need to be in the dialout group (second 'rw-' from left).Try from command line a check with command id like:

~ iduid=1000(enzo) gid=1000(enzo) groups=1000(enzo),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),113(lpadmin),127(sambashare)

In this case I cannot access that serial port. So I can add myself to dialout group:

~ sudo usermod -a -G dialout enzowhere enzo is your very userid as shown above by command idThen you need to logout and log back in in orderto have this change effective.

EnzoREnzoR

I use a USB adapter im my Dell Inspiron.

So I changed /dev/ttyS0 to /dev/ttyUSB0 and it works like a charm.

Kulfy

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Joel InacioJoel Inacio

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Active1 year, 5 months ago

I am running a certain application on Ubuntu (16.04) in VirtualBox, while VirtualBox is running on Windows 10 (host).

In Simulink (running on my host), I have a simulation where at the last stage, I gather some values. I want to output these values over a serial connection at a certain baud rate to the application that is running on VirtualBox (i.e. QGroundControl station).

So first part of my question - VirtualBox:

In VirtualBox, I enabled the serial port and chose a host pipe in port mode, as shown in:

In the picture you can see that COM6 is used, but I used COM1 and COM2 instead. I got the same result for both.

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I am not that used to working with VirtualBox, so I don't really know if this means I have now created a connection between my host and guest or if I still need to activate or connect them in any way?

Second part of my question - Simulink:

In Simulink, I want to output my values using a serial send (because I think that is the easiest way? If there is a better way, please tell me), but if I want to select a port, no ports are shown, as you can see in:

What do I need to do/change in VirtualBox/Simulink to get my COM port to show up?

Last part - MATLAB:

Because in Simulink, no COM ports were shown. I wanted to check for available ports in MATLAB, but apparently all my ports are closed:

If I try to open one of my ports by using the fopen()-command, I get this message:

Error using serial/fopen
Open failed: Port: COM1 is not available. Hummingbird twitter. No ports are available.
Use INSTRFIND to determine if other instrument objects are connected to the requested device.
Using 'INSTRFIND' shows that all ports are closed.

Peter Mortensen

Oracle Vm Virtualbox Serial Port

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LisLis

1 Answer

First of all, VirtualBox won't create a serial port for your host. So you have to create two virtual COM ports on the host using some other software and bridge these two ports virtually. Then use one port to connect to Simulink and other must be setup in such a way that VM COM port uses this port.

For creating a virtual COM port on Windows I will be using com0com fromFaking an RS232 Serial Port. You can use any software you like.

After installing com0com, open setuppg.exe from C:Program Files (x86)com0com.

Now click apply. Now you will have COM9 and COM10 bridged (it's like COM9 and COM10 are internally connected).

Next we need to connect COM9 port in Host to COM1 port in Guest OS for that open Oracle VM VirtualBox Manager and open the settings of your required virtual machine. Now, select Serial Ports and setup like shown below and click OK.

NOTE: Windows provides legacy names only for COM ports 1 through to 9. For all other COM ports you must use the full device naming convention under Windows. So if you decide to use COM10 instead of COM9, using COM10 at Path/Address won't work. Instead you have to use .COM10.

Now start your virtual machine, and your ports are ready. Now ports will be shown in Simulink and connect to COM10 in this scenario and in the virtual machine, connect your QGroundControl station to COM1.

Complete documentation is included on the DVD. The total package includes nine products and runs on Windows, Mac, and Linux. Matlab r2009a crack free download 6 25.

Simulink <--> COM10 (Host)

COM10 (Host) <--> COM9 (Host) >> Connected using com0com

COM9 (Host) <--> COM1 (Guest) >> Connected by Oracle VM VirtualBox

COM1 (Guest) <--> QGroundControl station

Usb Serial Ports

Peter Mort

Oracle Virtualbox Serial Ports