Given those files are readable, could it be some file format change between the working-on-NIS version with 10.04 (2.5.7-2ubuntu1) and the problem version of 12.04 (2.6.1-2), say if it is seeing extra man files via the NIS/automount environment?
Given those files are readable, could it be some file format change between the working-on-NIS version with 10.04 (2.5.7-2ubuntu1) and the problem version of 12.04 (2.6.1-2), say if it is seeing extra man files via the NIS/automount environment?