DS10 Console Reference
1-50
1.13
Halt Assertion
A halt assertion allows you to disable automatic boots of the
operating system so that you can perform tasks from the SRM
console.
Under certain conditions, you might want to force a “halt assertion.” A halt
assertion differs from a simple halt in that the SRM console “remembers” the
halt. The next time you power up, the system ignores the SRM power-up script
(nvram) and ignores any environment variables that you have set to cause an
automatic boot of the operating system. The SRM console displays this
message:
,EPXEWWIVXMSRHIXIGXIH
2:6%1TS[IVYTWGVMTXRSXI\IGYXIH
%983C%'8-32!&3386)78%68ERH37C8=4)!28MKRSVIHMJETTPMGEFPI
Halt assertion is useful for disabling automatic boots of the operating system
when you want to perform tasks from the SRM console. It is also useful for
disabling the SRM power-up script if you have accidentally inserted a command
in the script that will cause a system problem. These conditions are described
in the sections “Disabling Autoboot” and “Disabling the SRM Power-Up Script.”
You can force a halt assertion using the Halt button, the RCM halt command,
or the RMC haltin command. Observe the following guidelines for forcing a
halt assertion.
Halt Assertion with Halt Button or RMC Halt Command
Press the Halt button on the local system (or enter the RMC halt command
from a remote system) approximately five seconds after starting power up or
when the SRM console is running. The system halts at the SRM console, and
the halt status is saved. The next time the system powers up, the saved halt
status is checked.
NOTE: Wait 5 seconds after the system begins powering up before pressing the
Halt button or remotely entering the RMC halt command. Press the
button for several seconds.
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