To migrate a Turris 1.x router to Turris OS 5, its U-Boot environment must be updated to boot from NOR flash.

To migrate a Turris 1.x router to Turris OS 5, its U-Boot environment must be updated to boot from NOR flash.: a task in rts-1k-rootless-apptainer: RTS-1K: offline rootless Apptainer release (Harbor dataset). What the agent is asked, how it is graded, what it runs in, and its files.