[tex-live] missing fonts for 'texdoc TETEXDOC'

[Ken Brooks]

I have an install that is pretty close to working.  And a glitch that 
makes me wonder.  I run
   texdoc TETEXDOC
I get successful handling of logo*, cmr*, and cmsy* fonts and failures 
for ec-lmt* and zppl* fonts.  texdoc ends up substituting cmr fonts for 
the missing ones, and the document displays quite legibly.

For example, zpplcmr.  A careful search of my texmf trees reveals
   texmf-dist/tex4ht/ht-fonts/alias/adobe/mathppl/zpplcmr.htf
(a very small and uninformative file) but no related .mf from which a 
.tfm or .pk might be generated.

A second example, ec-lmtt10, fails differently.  I find
   texmf-dist/fonts/tfm/public/lm/ec-lmtt10.tfm
but no .mf or .pk to go with it.

Am I looking at a failure of installation, or an old document that names 
forgotten fonts and is tolerated because it is still readable?

-- 
Ken Brooks
rPath, Inc.