SUMMARY: getting to SRM prompt on serial console

From: Vijay Bandi <vijay_at_MR.Net>
Date: Thu, 17 Jun 1999 13:47:02 -0500 (CDT)

Hi all,

This is a great list. I was amazed at the zippy turn around time.
I thank the following list members.

Gene Heather
John J. Francini
Blake Roberts
Amy Skowronek
Phil Thomas

Everyone suggested 'shutdown -h' from rootshell. One alternative is
^P during boot. In summary, there doesnt seem to be a "suspend" feature.

% Blake Roberts
A more rude way to do it is a Ctrl-P at the console. It will drop you to
the SRM prompt, but it will also quickly shut down your system, which could
lead to disk corruption, etc.

        [I tested this and it works. It appears to me that it is a "abort"
        than a "suspend". You cant resume where you left off. However, it
        seems to be the only thing we got].

% John J. Francini
break doesn't always work too well on the Alphas. You didn't mention which
workstation it was -- different ones have different consoles, and,
therefore, different reactions to receiving a break character.

        [ its AlphaPC 164LX 533 MHz; firmware version 4.9 ]

% Phil Thomas
Use "shutdown -h now" from a root shell, or power cycle the machine (and if
AUTO_ACTION is set to BOOT or RESTART, interrupt the boot process with ^C
just as the bootstrap is called).

        [ For some reason, ^C didnt work for me (perhaps there is a SRM
        setting that is set to ^P on my machine). ]

-vijay


ps: my original posting follows

> dear alpha managers,
> We have a digital workstation that I am trying to upgrade
> remotely. I have it set up like this:
>
> digital server serial port
> (serial nullmodem cable)
> terminal server
> (telnet)
> my workstation
>
>
> actually, the term server is just a cisco router near by with an
> unused aux port, so I am using it. I configured the router to
> tunnel me to aux port (and to digital server's console) when I
> login to: 'telnet router 6001'
>
> The communication is just fine. The server is in multi-user mode
> and I get the console "login:" prompt and I can talk back.
>
> Now I am trying to send it a "break" to get it to SRM prompt.
> I interrupt the telnet session (^]) and do a "send brk" at telnet>
> prompt. But it doesnt drop to SRM and instead chugs along happily.
>
> question:
> Is my assumption correct that sending a break on serial console
> puts the machine into SRM? If not, what is the correct way
> to do this?
>
> Thank you.
> -vijay
>
Received on Thu Jun 17 1999 - 18:49:27 NZST

This archive was generated by hypermail 2.4.0 : Wed Nov 08 2023 - 11:53:39 NZDT