Auto-Boot Options; Error Handling Summary - Sun Microsystems Fire V210 Administration Manual

6.11.1

Auto-Boot Options

The auto-boot? setting controls whether or not the firmware automatically boots
the operating system after each reset. The default setting is true.
The auto-boot-on-error? setting controls whether the system attempts a
degraded boot when a subsystem failure is detected. Both the auto-boot? and
auto-boot-on-error? settings must be set to true to enable an automatic
degraded boot.
●
To set the switches, type:
ok setenv auto-boot? true
ok setenv auto-boot-on-error? true
Note – The default setting for auto-boot-on-error? is false. Therefore, the
system does not attempt a degraded boot unless you change this setting to true. In
addition, the system will not attempt a degraded boot in response to any fatal non-
recoverable error, even if degraded booting is enabled. For examples of fatal non-
recoverable errors, see
6.11.2

Error Handling Summary

Error handling during the power-on sequence falls into one of the following three
cases:
If no errors are detected by POST or OpenBoot Diagnostics, the system attempts
■
to boot if auto-boot? is true.
If only non-fatal errors are detected by POST or OpenBoot Diagnostics, the
■
system attempts to boot if auto-boot? is true and auto-boot-on-error? is
true.
Note – If POST or OpenBoot Diagnostics detects a non-fatal error associated with
the normal boot device, the OpenBoot firmware automatically unconfigures the
failed device and tries the next-in-line boot device, as specified by the boot-device
configuration variable.
If a fatal error is detected by POST or OpenBoot Diagnostics, the system does not
■
boot regardless of the settings of auto-boot? or auto-boot-on-error?. Fatal
non-recoverable errors include the following:
■
"Error Handling Summary" on page
All CPUs failed
31.
Chapter 6 Diagnostics 6-31