Tre64ers,
If you do a crtl-p from the console keyboard , it will
take you to the Chevron >>> prompt -
if you type "continue" it will "unhalt" the cpu(s) and
return you to where you were on the live system.
I just "proved" this on a GS140 over the weekend. Also
during the "crtl-p" halt, commands typed into a
seperate " telnet" window to that box executed (after
continue was entered {I believe they were held in
buffer}). What I am still unsure of is:
when at the chevron >>> prompt , are there "interim"
commands that can be entered (ie... sho dev, set
ewa_mode, etcetera) , have them execute, and then the
"continue" will still execute to return you to the OS
you left prior to the crtl-p.
Any additional enlightenment on this Tru64 "STOP-A"
feature would be appreciated. we have been having
trouble finding (all of the ) documentation.
Mike Burns
Also: shutdown -h , shutdown -r , and a "init 0" will
always work if you are desperate to get the machine to
"it's knees".
--- Vijay Bandi <vijay_at_MR.Net> wrote:
> From Vijay Bandi Thu Jun 17 11:47:02 1999
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> vijay_at_localhost From vijay
> Date: Thu, 17 Jun 1999 13:47:02 -0500 (CDT)
> From: Vijay Bandi <vijay_at_MR.Net>
> Subject: SUMMARY: getting to SRM prompt on serial
> console
> In-reply-to: <199906170118.UAA15185_at_data.mr.net>
> To: tru64-unix-managers_at_ornl.gov
> CC: vijay_at_MR.Net (Vijay Bandi)
> Message-id: <199906171847.NAA14636_at_data.mr.net>
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>
> 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
> >
>
>
===
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Received on Mon Jun 21 1999 - 23:01:03 NZST