nodus was hanging because it was trying to mount the cit40m account from rigel and rigel was not responding.
Neither I nor Yoichi can recall what the cit40m account does for us on nodus anymore and so I commented it out of the nodus /etc/vfstab.
nodus may still need a boot to make it pay attention. I was unable to do a 'umount' to get rid of the rigel parasite. But mainly I don't want anything in
the 40m to depend on the LIGO GC system if at all possible.