Re: "Garbage" output when connecting to sun box over serial port with tip

From: Matthew Weigel (nospamUSENETnospam_at_idempot.net)
Date: 04/05/05 

Date: Mon, 04 Apr 2005 18:09:27 -0500

dan.gravell@talk21.com wrote:
> Hello, I am having trouble getting something legible out of a Sun box
> when connecting to it from tip so I wondered if there was anything
> obvious I was not doing correctly.

What is the exact /etc/remote entry and command line you're using?

> I was given a Sun Netra 120 server to wipe clean and install a fresh
> version of Solaris on. I bought a null modem adaptor so that I can
> connect from a separate Ultra 5 box I have already configured. I can
> connect them up (to the LOM port on the Netra) and issue a "tip
> hardwire" or "tip [hardcoded term]" and I get "connected".

Hmmm... the stock 'hardwire' entry is almost identical to the entry I
use regularly. The main difference is /dev/term/b rather than my own
/dev/cua/b.

> I followed
> the advised 9600 baud both in the command line and also in /etc/remote
> (although I notice there're more settings in that file).

You shouldn't specify anything on the command line but the /etc/remote
entry.

> issuing a "printenv" yields 90% garbage (by which I mean, seemingly
> random characters) and the odd recognisable bit such as a variable
> name.

I've always gotten complete garbage (using a null-modem cable with
null-modem adapter, so essentially a modem connection), or everything
working perfectly... I suspect /etc/remote, differences in the device,
or a bad cable.

> I can't see my own keystrokes either, although they are obviously
> received as the Netra "does stuff".

That means your system and the remote system are both expecting the
other to echo characters, I think.

Try using the following as your /etc/remote entry (very minimalist):
cuab:dv=/dev/cua/b:br#9600

Just issue "tip cuab" as your command.

(good practice is to rename "cuab" the name of the machine, but that's
only if it's a permanent connection) 

-- 
  Matthew Weigel

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