Run “luaotfload-tool --help”. Near the end it should print the
cache paths, e.g.:
The font database will be saved to
/home/phg/src/texlive2013/texmf-var/luatex-cache/generic/names/luaotfload-names.lua
/home/phg/src/texlive2013/texmf-var/luatex-cache/generic/names/luaotfload-names.luc
<snip />
The font cache will be written to
/home/phg/src/texlive2013/texmf-var/luatex-cache/generic/fonts
The path prefix (configured in texmf.cnf; in this case
/home/phg/src/texlive2013/) must be writable for the user that is
running luatex; the subdirectories under it will be created, even
if you only run luaotfload-tool without options.
Well, perhaps a clue. When I run luaotfload-tool help, it shows me
The font database will be saved to:
c:/users/egc/AppData/Local/MikTeX/2.9/luatex-cache/generic/names/luaotfload-names.lua
c:/users/egc/AppData/Local/MikTeX/2.9/luatex-cache/generic/names/luaotfload-names.luc
and then...nothing else. I get no statement about where the font cache
will be written to (i.e., I don't see anything like
The font cache will be written to
/home/phg/src/texlive2013/texmf-var/luatex-cache/generic/fonts
In fact other than the statements about where the font database will be
written to, runing luaotfload-tool --help shows me nothing else. At all.
nd all the subdirs contained therein).
According to your log file that is where the font loader writes
its cache files to:
C:/Users/egc/AppData/Local/MiKTeX/2.9/luatex-cache/generic/
The names db should reside in a subdirectory “/names”, the font
cache under “/fonts/”. If deleted, it will be recreated the next
time you run luaotfload-tool or luatex with luaotload. Can you
post the permissions of these directories and the files in them?
This might be the clue. If I delete luatex-cache from
c:/users/egc/AppData/Local/MikTeX/2.9/ (i.e., start over), bring up a
command shell, and then run
luaotfload-tool --update --force
It creates luatex-cache, then generic, and then names but...then quits
with the following error message:
luatofload | db: scanning TEXMF and OS fonts...
luaotfload -tool: Windows API error 5: Access is denied.
luaotfload-tool: Data: C:/users/egc/Templates
and then it exits.
Now, whats odd is that I get the above if I run luaotfload-tool. But, if
instead, I (i) delete the luatex-cache file (again, start over), and
then try to compile a MWE that uses fontspec, it grinds along, then
luaotfload | db : Font name database not found, generating a new one.
luaotfload | db: This can take several minutes; please be patient.
and, as before, \fonts and \names get created, \fonts contains the
fonts, but \names is empty.
So, even though I 'shouldn't', I bring up a cmd window, and as admin,
run luaotfload-tool --update --force. Runs to completion. Fonts in
\fonts, and (importantly) in \names, see luaotfload-names.lua and
luaotfload-names.luc
Now, try to compile MWE, and once again, I get all those ... could not
write to cache messages. Document compiles, but still...
if it matters --
