US 2020/0089572 A1 · AUTOMATIC DIAGNOSTIC MODE

Abstract

Example implementations relate to automatic diagnostic mode to identify a potential cause of a boot problem of a system. In an example, the automatic diagnostic mode iteratively isolates subsystems of the system in coordination with a baseboard management controller. For each iteration of subsystem isolation, a system boot is executed while a subsystem is isolated. The system boot is monitored against a watchdog timer of the baseboard management controller to determine if the system boot is successful. If the system boot is successful, the isolated subsystem is marked as a potential cause of the boot problem of the system. If the system boot is unsuccessful, the automatic diagnostic mode continues to iteratively isolate the subsystems.

Claims20

Dependent claims

A system comprising:

a plurality of subsystems;
a baseboard management controller;
and
platform firmware, executing on a processing resource, to implement an automatic diagnostic mode when a boot problem of the system is detected, the automatic diagnostic mode including:
iterating through the plurality of subsystems,
at each iteration of the iterating,
isolating at least one subsystem of the plurality of subsystems in coordination with the baseboard management controller,
carrying out a system boot with the at least one subsystem isolated,
monitoring the system boot against a watchdog timer of the baseboard management controller,
if the system boot completes without the watchdog timer expiring, mark the at least one subsystem that is isolated as a potential cause of the boot problem, and
if the watchdog timer expires, continue iterating through the plurality of subsystems.

8 more elements

Dependencies are inferred from the claim text.

Automatic diagnostic mode

Life of this patent

Automatic diagnostic mode

Life of this patent

Abstract

Claims20