Lifecycle Controller User's Guide

Firmware rollback

Lifecycle Controller allows you to roll back to a previously installed version of component firmware such as BIOS, iDRAC with Lifecycle Controller, RAID Controller, NIC, Enclosure, Backplane, Fibre Channel cards, BOSS-S1, NVDIMM, and Power Supply Unit (PSU). Use this feature if you are facing an issue in the current version, and want to revert to the previously‑installed version.

All servers supported by this release have a single iDRAC and Lifecycle Controller firmware. Rolling back the iDRAC firmware also rolls back the Lifecycle Controller firmware.

• Dell Diagnostics, operating system driver packs, CPLD, and operating system collector tool cannot be rolled back to earlier versions.
• The earlier version is available only if the component firmware is updated at least once to a different version.
• Except for iDRAC firmware, the earlier version of the firmware is not displayed if the current version and the earlier version are the same.
• Every time a firmware image is updated, the earlier version of the firmware image is backed up.
• Every time a rollback operation is performed, the previously installed firmware becomes the current version. However, for iDRAC, the previously installed version becomes the current version and the current version is stored as the previous version.
• The earlier version of the firmware is available only if any of the following tools are used to update the firmware: Lifecycle Controller Firmware Update feature, Lifecycle Controller-Remote Services, or the Dell Update Package (DUP) from operating system.
  NOTE:

  • When SEKM mode is enabled on a controller, iDRAC Firmware rollback shall fail when tried from a SEKM to a non-SEKM iDRAC version. iDRAC Firmware rollback shall pass when done within the SEKM versions.
  • PERC firmware rollback to a non-SEKM version shall fail when SEKM encryption mode is enabled on PERC controller.