@fgiunchedi reimaged thanos-fe2001 to Debian Bullseye, but d-i didn't bring up the link with Linux 5.10:
[ 10.305584] bnxt_en 0000:af:00.0 enp175s0f0np0: NIC Link is Up, 10000 Mbps full duplex, Flow control: ON - recei [ 10.305590] bnxt_en 0000:af:00.0 enp175s0f0np0: FEC autoneg off encoding: None [ 12.105509] bnxt_en 0000:af:00.0 enp175s0f0np0: NIC Link is Down [ 13.356575] bnxt_en 0000:af:00.0 enp175s0f0np0: NIC Link is Up, 10000 Mbps full duplex, Flow control: ON - recei [ 13.356581] bnxt_en 0000:af:00.0 enp175s0f0np0: FEC autoneg off encoding: None [ 13.356635] IPv6: ADDRCONF(NETDEV_CHANGE): enp175s0f0np0: link becomes ready [ 13.745342] bnxt_en 0000:af:00.0 enp175s0f0np0: NIC Link is Down
The installation only worked after the NIC firmware was updated following https://wikitech.wikimedia.org/wiki/SRE/Dc-operations/Platform-specific_documentation/Dell_Documentation#NICs
Given that have over 400 servers with that type of NIC (full list at https://phabricator.wikimedia.org/P16824), opening this task for
- better visibility
- more debugging and to track if this applies to all such installations
- if so, eventually automating the NIC firmware update