I've been trying to get an IOGear GUC232AWM USB serial port to work on an Ubuntu Linux guest running on a Windows Vista host running VirtualBox 3.1.2. The USB port works under Windows and shows up as 'ATEN USB to Serial Bridge COM25' under Windows.
Linux / UNIX minicom Serial Communication Program last updated February 5, 2008 in. Install minicom. Use apt-get under Debian / Ubuntu Linux, enter: $ sudo apt-get install minicom If you are using Red hat Linux (RHEL) / CentOS / Fedora Linux, enter. I use minicom on ubunto to connect via USB 2 serial device. When I type minicom -s.
It is called 'Prolific Technology Inc. USB Serial Controller 0300' in the Devices-USB menu in Virtual Box. It is listed as 'Captured' when the mouse hovers over it on the Devices-USB menu. However, it doesn't work or I can't find it in Ubuntu. I've tried /dev/tty0, /dev/tty1, /dev/tty8, /dev/tty25, /dev/ttyS0, /dev/ttyS1 and others to no avail. The port is unavailable in Windows when VirtualBox is running, so it appears that it's being captured.
Can anyone provide any hints as to how I access it in Linux under VirtualBox? I'm using minicom on linux for testing. FWIW, this USB serial port works on this same hardware if I boot from a Ubuntu partition on the real machine. The device shows up as '/dev/ttyUSB0' on a real Ubuntu boot.
I just discovered VirtualBox a few days ago. I'm very impressed so far. I do embedded hardware and software development and this solution would be tremendously useful for me if I can get the serial port to work; I need it to connect to my target hardware. Posts: 1 Joined: 26. Dec 2009, 21:57 Primary OS: MS Windows Vista VBox Version: PUEL Guest OSses: Ubuntu Linux.
Contents. People who work with Cisco network equipment need to be able to connect to the console port on their devices. In Windows, you can simply fire up to get basic access to your devices. If you are using Linux, then you need to know how this can be done with an application called Minicom. Hardware First, you are going to need a Cisco console cable, a Cisco device, and a computer.
If your computer has a serial port, then you can use the standard console cable that comes with every Cisco device. If you do not have a serial port (like most new laptops), then you need to purchase a USB to Serial adapter that supports Linux.
Many of them do not require a driver in Linux. Make sure the item is plugged in at boot time & the system should find it. This device will allow you to use the standard Cisco cable which has a DB9 serial connector on one end & an RJ45 connector on the other. Install Minicom You can easily install Minicom by using 'System Administration Synaptic Package Manager'. Search for 'minicom' and choose to install the package. Click 'Apply' and Minicom should be installed within a few seconds. Find the name of your serial port Next, you need to find out is which device your serial (including the USB adapter) ports are mapped to.
The easiest way to do this is to connect the console cable to a running Cisco device. Now open up a Terminal using 'Applications Accessories Terminal' and type this command: dmesg grep tty The output will look something like one of these: 0.788856 serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A 0.789144 00:08: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A 42 usb 2-1: pl2303 converter now attached to ttyUSB0 186 type=1503 audit(.994:33): operation='open' pid=27195 parent=27185 profile='/usr/sbin/cupsd' requestedmask='w::' deniedmask='w::' fsuid=0 ouid=0 name='/dev/ttyUSB0 Look in this output for words that contain 'tty'.
In this case, it is 'ttyS0'. That means the name of the device that corresponds to your serial port is 'ttyS0'. The name of your device that corresponds to your USB port has a definition of name='/dev/ttyUSB0' (make sure it's plugged in).
Now we are ready to configure Minicom to use this information. Configure Minicom Open a terminal using 'Applications Accessories Terminal'. Now type this command to enter the configuration menu of Minicom: sudo minicom -s Use the keyboard arrow keys to select the menu item labeled 'Serial Port Setup' and then hit 'Enter'. This will open a window that looks similar to the one below: Change your settings to match the ones in the picture above. Here is what I had to change:.
![Minicom Usb Serial Ubuntu Desktop Minicom Usb Serial Ubuntu Desktop](http://www.cyberciti.biz/tips/wp-content/uploads/2008/02/minicom-in-action-snam.png)
Change the line speed (press E) & change to '9600'. Change the hardware flow control (press F) & change to 'No'. Change the serial device (press A) & change to '/dev/ttyS0'. Or to use your USB port, change the serial device to '/dev/ttyUSB0'. Be sure to use the device name that you learned with the grep output. Once your screen looks like mine, you can hit 'Escape' to go back to the main menu. Next, you need to select 'Save setup as dfl' and hit 'Enter' to save these settings to the default profile.
Then select 'Exit Minicom' to exit Minicom. To find out if you have configured Minicom correctly, type this command in the terminal: sudo minicom After entering your Ubuntu user password, you should be connected to your Cisco device. Once inside, press Ctrl+A, to access minicom commands. Press 'Ctrl+A', then 'Z' to access help. Ctrl-A, then another letter, like 'X' & you will eXit.
Help will show a list of available commands. Note: You may want to delete the Minicom init string if you see a bunch of gibberish every time you connect to a device. To do this, enter Minicom configuration with: sudo minicom -s Then select 'Modem and dialing'. Press 'A' to edit the Init string, and delete all characters so that it becomes empty.
Make sure you save this to the default profile with 'Save setup as dfl'. You should no longer see gibberish when you connect to devices. Create a desktop launcher If you want to have quicker access to Minicom, you can create a desktop launcher.
Right-click on the desktop and choose 'Create launcher'. Click on 'Icon' and choose the picture you want to use.
Use the 'Type' pull-down menu and select 'Application in terminal'. Create a name like 'Cisco Console' in the field labeled 'Name'. Enter this command into the field labeled 'Command'. sudo minicom.
Hit 'OK' and your desktop launcher is ready for you to use.