Using Serial Port as a Terminal Interface with VMware?

Question

I have the following configuration setup:

Ubuntu 12.10 os a virtual machine using VMware. Host OS is Windows 8.1 Terminal Program is Putty as a Serial Terminal in Windows 8.1

Process:

Ubuntu VMware machine: hardware is Serial Port 2 using \\.\pipe\com_1 Windows 8.1, Putty is set to Serial line \\.\pipe\com_1 Speed 115200

On a terminal in Ubuntu:

billm@ubuntu:~$ echo hello > /dev/ttys1
bash: /dev/ttys1: Permission denied

Nothing shows up on the putty terminal window at Windows 8.1

What can I do to prove that Ubuntu can talk serially to putty?

Answer 1

Try using sudo to run the command,

$ sudo echo hello > /dev/ttys1

or changing the permissions of the device to be readable/writeable by anyone and then running the command as user:

$ sudo chmod a+rw /dev/ttys1
$ echo hello > /dev/ttys1

Note that you may need to run chmod every time the device is created to interact with it as a user.