Linux drivers software for devices
Linux drivers software for devices
It's the latest stable release of Ubuntu Server LTS, I saved it as an ISO about two months back. The version 21.1 seems appropriate.
The most recent LTS version is 24.04, reflecting updates from April 2024. A release date of 21.1 would correspond to 2021, but Ubuntu only offers 04 (April) or 10 (October) releases, with the exception of 6.06.