Tony Schreiner wrote: > Just to reassure you. I've had no problems with octave and hdf5 ( both > from epel ). > > From what you've written, I don't think this it the problem, but just > to be sure: are you running x86_64 and have installed i386 hdf5? no, its i386 OH. looking again (having put this aside since last week) # yum list hdf5 .... hdf5.i386 1.8.0-1.el5.rf installed looks like I got hdf5 from rpmforge :-/ ok, # yum remove hdf5 # yum --disablerepo=rpmforge install octave octave-forge hdf5 has sorted it out. grrrrrr. once again epel does not play well with others :(((