Workstation Firmware and POST: Secure Boot key mismatch | Auckland
Pattern to record: The firmware rejects a previously bootable system after an update or board change.
Record the boot configuration
Workstations may have multiple memory channels, add-in storage controllers and protected array settings. Record the installed layout and diagnostic code; preserve RAID configuration when reducing the machine to a supported test configuration. One possible explanation is that trusted keys and the installed loader no longer agree.
Preserve recovery options
Do not initialise storage controllers or clear security data during basic POST diagnosis. Clearing keys without approval can break managed security and encryption.
Firmware and hardware checks
- Use diagnostic codes and minimum supported configuration while preserving RAID and security settings.
- Record key state and verify the operating-system loader and organisational policy.
Recovery and startup checks
If the checks support this cause, restore approved keys or repair the signed boot chain. Verification should cover cold boot, all memory channels, storage controller state, expansion devices and sustained work.
For an assessment of your professional workstation, contact AEPC in Burswood or call 027 908 8880. Provide the model and the conditions that reproduce this problem. Workshop visits are by appointment.