Aha, tried it again and the sh2.05a# turned out to be single-user mode after all. What, no localhost prompt? No friendly notice saying that if you want to make modifications to files, run
/sbin/fsck -y
/sbin/mount -uw /
Hmm, trying to make it difficult are they? Also a notice on rebooting (sync;sync;sync;reboot) or shutting down (shutdown -r now) would be nice for n00bs like myself lost in the dark, wondering what the hell to do. Fortunately I had a (Ahem!
THE book on this stuff, otherwise I'd be sh**ting myself.
BTW: managed to cp -R local.nidb no probs
