You're assuming that there is in fact a /var/log/FPRSA-R.log to tail - it would not at all surprise me if a system this old is still writing its logs to a 5.25

You're assuming that there is in fact a /var/log/FPRSA-R.log to tail - it would not at all surprise me if a system this old is still writing its logs to a 5.25 inch floppy in Prestwick or Swanwick^1. ^1: they closed the West Drayton centre about twenty years ago; I don't imagine they moved their old IBM 9020D too, if they still had it by then. My comment is nonetheless only slightly exaggerated ;)