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 rsc console already in use

I have a problem with a bunch of v240 boxes.

Each has an alom interface, which is connected to a subnet using
cat-5. I want to get the system console in read/write mode through

eeprom settings:

Box has been rebooted.

I created a user account with permissions "cuar" and then log in with
to this account:
sc> console
Console session already in use. [view mode]
Enter #. to return to ALOM.

Yet I know that nobody else is using the alom, so it must be that the
console is already assigned elsewhere (ttya?).

sc> showusers
username         connection       login time       client IP addr   console
--------         ----------       ----------       --------------   -------
                 serial           OCT 05 09:13                      system
admin            net-1            OCT 05 09:07

How can I allow console login through alom without having to use console -f?

I haven't had this problem on v210s or 280Rs.

If I left out info, just ask.



 Sat, 24 Mar 2007 17:42:10 GMT   
 rsc console already in use

You can't.  Just use  console -f

The serial port will grab write access if nobody else is using it, so if
you're coming in over the network you'll (almost) always need to use -f.

You'll have it on the V210 as they are exactly the same as the V240.
Perhaps you're running an older version of ALOM on the V210?
SF280R use RSC which is different to ALOM.


 Sat, 24 Mar 2007 23:16:35 GMT   
 rsc console already in use
On 5 Oct 2004 15:16:35 GMT, Scott Howard <> wrote:
Hi Scott,

thanks for replying. I appreciate that if someone is logged in over the
console then I will need to boot them off with console -f, but I know
that nobody is logged in over the console via the serial interface. For
some reason alom *thinks* the serial console has read access. Even
after using console -f, when I logout and then log back in again
the console is locked again.

I'm wondering if another process is locking the console but I'm not
sure where to check. Things that spring to mind are pmadm, eeprom (I
mentioned I'd setup i/o for rsc-console) and ttya and ttyb.

Hope someone can point me in the right direction...


 Sun, 25 Mar 2007 18:00:30 GMT   
 rsc console already in use

Perhaps you missed what I said..

"The serial port will grab write access if nobody else is using it, so if
you're coming in over the network you'll (almost) always need to use -f."

The moment you disconnect from the console over the network, write access
will be given back to the serial console.  That's the way it is.

It's done like that so that as much as possible the serial connection will
have write access. This is done so that if users connect to the serial
they will get a write session, rather than a read-only session where
they hit return a few times, decide the machine is dead, and then power
cycle it.


 Sun, 25 Mar 2007 20:32:47 GMT   
 rsc console already in use
On 6 Oct 2004 12:32:47 GMT, Scott Howard <> wrote:


Right, now I see where you are coming from. Thanks for taking the time
to clarify that. Much appreciated. Given that this is the case, is there
ever any point in changing eeprom settings input-device and ouput-device
to "rsc-console"? I had previously figured that this meant the serial port
didn't grab the console..

Thanks again,


 Sun, 25 Mar 2007 21:04:31 GMT   
 rsc console already in use

rsc-console is for RSC devices, not ALOM. I doubt your machine has an
"rsc-console" device node, which will result in it just dropping
back to the serial (aka ALOM) port.


 Sun, 25 Mar 2007 22:22:11 GMT   
 rsc console already in use
On 6 Oct 2004 14:22:11 GMT, Scott Howard <> wrote:

I thought alom was considered rsc. After all scadm has resetrsc as an
arguement. If you are correct (and the practical usage says you are!)
then is there an equivalent argument for eeprom settings input-device
and output-device that is suitable for alom?

Thanks once again for the info,

Ben Fitzgerald
Registered Linux user number 339435

 Mon, 26 Mar 2007 00:34:18 GMT   
 rsc console already in use

Well, I'm used to treat ALOM as "just another kind of RSC". The first
thing I always do after installing a V240 is resetting escape sequence
to the traditional ~. :)
\ Daniel Rychcik     INTEGRAL Science Data Centre, Versoix/Geneve, CH
  \  GCM/CS/MU/M d- s++:+ a- C+++$ US+++$ P+>++ L+++$ E--- W++ N++ K-
   \ w- O- M PS+ PE Y+ PGP t+ 5 X- R tv b+ D++ G+ e+++ h--- r+++ y+++

 Mon, 26 Mar 2007 14:41:51 GMT   
   [ 8 post ] 

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