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Solaris The Solaris Operating System, usually known simply as Solaris, is a Unix-based operating system introduced by Sun Microsystems. The Solaris OS is now owned by Oracle.

How send break in T5220 Box?

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Old 01-10-2008
xlen xlen is offline
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Question How send break in T5220 Box?

Hi,

I used "send brk" from terminal in T5220 Box, but no response.

Anyone know what's reason?


Thanks!
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Old 01-11-2008
moofoo moofoo is offline
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didnt get that you are connected to the console
alom odr ilom ? standard at the t2210 is the newer ilom
where its like
set /HOST send_break_action=break
and then
start /SP/console
to enter the console
and all the commands have changed
you can see a compairision of the commands here
but you can also use the old alom if preferred
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Old 01-11-2008
moofoo moofoo is offline
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hi !
are you using alom or ilom (standard ont 5220 ) ?
if you are using ilom use the ,
set /HOST send_break_action=break command
according to ->
A P P E N D I X B - ALOM CMT Compatibility Shell
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Old 01-15-2008
xlen xlen is offline
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Hi,

I thinks that i using ALOM shell.

So i already enter the command:
"set /HOST send_break_action=break"

But i still can't use send break command from console.
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Old 01-21-2008
xlen xlen is offline
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? anyone knows?
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Old 03-13-2008
kaufmoa kaufmoa is offline
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Which prompt do you see??

"->" = ILOM
"sc>" = ALOM

From ILOM to Solaris:

-> start /SP/console

From ALOM to Solaris:

sc> console

Enter "#." to return to ALOM / ILOM !!

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Old 03-14-2008
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hi!

break doesn't work?

Peter Wilson from Sun explains:

This is normal behaviour for Sun4v systems once LDOMs is enabled on
the platform. All platforms are essentially LDOMs aware now so this
is normal default behaviour for all currrently shipping sun4v
systems. Early T2000/T1000s didn't have LDOMs capable firmware and
were able to get back to the OBP and its OK prompt just like
previous sun4u systems.

This change in behaviour was explained to me as follows...

An instance of OBP is initially loaded into RAM (each domain gets
its own copy of OBP, even in the case of a factory fresh system, it
is regarded as a single domain system) and an run from there, once
its' job has been completed and the boot process for Solaris is
underway, the memory used by OBP is freed and handed back to the OS
for its use… OBP ceases to exist.

If you send a break to the OS you now don't have an OBP to get back
to… so no OK prompt. The procedure to get to an OK prompt is to send
the break, respond to the prompt with an 'r' to reboot, and before
the system has proceded far enough for the newly loaded OBP to hand
off execution to Solaris, send another break, since OBP is still
there, you will now get an OK prompt.

So, if you want to get to the OK prompt on a T5120 or T5220, reboot first, then break while OBP is still loaded.
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