Serial Ports

[Ned Konz]

Elan wrote:

> Hi Chuck, Hi Gordon,
>
> thanks for the early responses. Eliminating obvious gotchas is a smart
> first step.
>
> 1. Incorrect paths /dv/ttsX
> I mistyped the path in my message to the newsgroup. I used the file
> selector dialog to select the ttysX files from the /dev directory, and
> accordingly configuration's pathnames are correct.
>
> 2. The settings for the ttysX are crw-rw-rw-
>
> The serial ports are working under Linux but I continue to get the
> "failed to open" error message (see problem described below).
>
> More ideas?

Didn't you mean /dev/ttyS0 or /dev/ttyS1 (upper case S)?

[gord...@gotnet.net]

Check the permissions on ttyS0 and ttyS1 in your /dev directory. They
need to be set to: chmod 666 ttyS0, for example. The common default
is to have root access only for these devices.

I assume you are not running vmware under the root account, but as a
normal user account.

On Thu, 15 Mar 2001 00:37:55 -0800, Elan <re...@techscribe.com> wrote:

>Hi,
>
>Host: Redhat Linux 6.2, kernel 2.2.14-5.0
>VmWare product type: 2.0.1, version 2.0.3 build-799
>Guest: Windows 95
>
>Under Linux I have my modem on ttys0 and it works. I have used ttys1 to
>rsync with other serial devices, and that works as well.
>
>I have attempted to create COM1 and COM2 ports for the Windows 95 guest
>system. When I try to boot the virtual machine I get the error messages:
>
>failed to open tty /dv/ttys0: Input/output error.
>Failled to connect serial0.
>Device serial0 will start disconnected.
>
>and
>
>failed to open tty /dv/ttys1: Input/output error.
>Failled to connect serial1.
>Device serial1 will start disconnected.
>
>I get the same error messages independent of whether I configure the
>type as a "Device" or as "TTY". I also get the same error message for
>the respective serial port, if I attempt to configure only one of either
>ports. Finally, I also get the same errors if I try to connect the
>serial ports after the machine has booted, instead of at boot time.
>
>What can I do?
>
>TIA,
>
>Elan

[Elan]

[Chuck Gladu]

Going out on a limb here, but they are normally /dev/ttys0 and
/dev/ttys1 rather than /dv/ttys0 and /dv/ttys1

On Thu, 15 Mar 2001 00:37:55 -0800, Elan <re...@techscribe.com> wrote:

[Petr Vandrovec]

gord...@gotnet.net wrote:
>
> Check the permissions on ttyS0 and ttyS1 in your /dev directory. They
> need to be set to: chmod 666 ttyS0, for example. The common default
> is to have root access only for these devices.

His main mistake is using ttys0 and not ttyS0! UNIX is case sensitive
and ttys0 is completely different device than ttyS0!
Petr

[Elan]

Hi Petr,

I am aware that ttys0 and ttyS0 are different devices. Are you saying
that I should be using ttyS0 (or 1), and not ttys0? I'll give it a shot.

Thanks,

Elan

[Elan]

Hi Chuck, Hi Gordon,

thanks for the early responses. Eliminating obvious gotchas is a smart
first step.

1. Incorrect paths /dv/ttysX

I mistyped the path in my message to the newsgroup. I used the file
selector dialog to select the ttysX files from the /dev directory, and
accordingly configuration's pathnames are correct.

2. The settings for the ttysX are crw-rw-rw-

The serial ports are working under Linux but I continue to get the
"failed to open" error message (see problem described below).

More ideas?

TIA,

Elan

[Elan]

Hi Chuck, Hi Gordon,

thanks for the early responses. Eliminating obvious gotchas is a smart
first step.

1. Incorrect paths /dv/ttsX

I mistyped the path in my message to the newsgroup. I used the file
selector dialog to select the ttysX files from the /dev directory, and
accordingly configuration's pathnames are correct.

2. The settings for the ttysX are crw-rw-rw-

The serial ports are working under Linux but I continue to get the
"failed to open" error message (see problem described below).

More ideas?

TIA,

Elan