Rmc Firmware Update And Recovery - HP AlphaServer TS15 Owner's Manual

6.9

RMC Firmware Update and Recovery

This section contains definitions, explanations, and examples about RMC firmware
update and recovery.
Flash Accessibility
Under normal circumstances, the RMC flash part is fully write-enabled. LFU has the ability
to update the firmware components contained within this part. However, write access to this
flash can be completely disabled by installing the DISABLE_FLASH jumper (J21) on pins
1-2. Installing this jumper disconnects the write-enable line from the RMC to the flash part.
This disables LFU (or any other utility) from modifying the contents of the flash part.
RMC Flash Update
The RMC code consists of two images: the booter image and the runtime image. Firmware
updates for the RMC are performed using the standard SRM Console Loadable Firmware
Update (LFU) utility. The runtime image is the FW image most likely to be updated.
Updating the Booter
It is unlikely that this image will ever need to be updated. However, should it become
necessary to update the booter image, that image will be included in the 'manual' portion of
the LFU update utility. (See Example 6–4) If a booter image update is available, the
revision of the image is displayed in favor of "No Update Available".
In order to update the booter, the write enable jumper (BOOTER_ENABLE – J22 7-8) must
be installed first. If this jumper is not installed, the booter image update is not allowed.
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