Before we can update our hosts to Bullseye, we'll need to update the firmware on Dell PowerEdge R440 with Broadcom NetExtreme NICs (the installer won't work until the NIC firmware is updated). As of this writing, the current firmware version is 21.85.21.92 .
AC:
- All hosts updated to latest approved NIC firmware
- Process is thoroughly tested and documented.
See https://phabricator.wikimedia.org/T309343#7971329 and https://wikitech.wikimedia.org/wiki/SRE/Dc-operations/Platform-specific_documentation/Dell_Documentation#Urgent_Firmware_Revision_Notices: for more details.