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Upgrades of a CIMC through a management firmware package or an adapter through a firmware package
in the service profile associated with the server take precedence over direct firmware upgrades. You cannot
directly upgrade an endpoint if the service profile associated with the server includes a firmware package.
To perform a direct upgrade, you must remove the firmware package from the service profile.
Note
Stages of a Direct Firmware Upgrade
Cisco UCS Manager separates the direct upgrade process into two stages to ensure that you can push the
firmware to an endpoint while the system is running without affecting uptime on the server or other endpoints.
Update
During this stage, the system copies the selected firmware version from the primary fabric interconnect to the
backup partition in the endpoint and verifies that the firmware image is not corrupt. The update process always
overwrites the firmware in the backup slot.
The update stage applies only to the following endpoints:
• Adapters
• CIMCs
• I/O modules
Do not remove the hardware that contains the endpoint or perform any maintenance on it until the update
process has completed. If the hardware is removed or otherwise unavailable due to maintenance, the
firmware update fails. This failure may corrupt the backup partition. You cannot update the firmware on
an endpoint with a corrupted backup partition.
Caution
Activate
During this stage, the system sets the specified image version (normally the backup version) as the startup
version and, if you do not specify Set Startup Version Only, immediately reboots the endpoint. When the
endpoint is rebooted, the backup partition becomes the active partition, and the active partition becomes the
backup partition. The firmware in the new active partition becomes the startup version and the running version.
The following endpoints only require activation because the specified firmware image already exists on the
endpoint:
• Cisco UCS Manager
• Fabric interconnects
• Board controllers on those servers that support them
When the firmware is activated, the endpoint is rebooted and the new firmware becomes the active kernel
version and system version. If the endpoint cannot boot from the startup firmware, it defaults to the backup
version and raises a fault.
Cisco UCS Manager GUI Configuration Guide, Release 2.0
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Firmware Upgrades