/usr/bin/dvips: ! DVI file can't be opened.

moodle內有支援tex(latex)
因為是直接調控主機內的程式，所以安裝了
tetex-latex
及其他相依程式

測試過後發現圖片出不來
檢查/etc/httpd/logs/error_log

kpathsea: Running mktexfmt latex.fmt
kpathsea: Running mktexfmt latex.fmt
fmtutil: format directory `/.texmf-var/web2c' does not exist.
fmtutil: format directory `/.texmf-var/web2c' does not exist.
This is dvips(k) 5.95a Copyright 2005 Radical Eye Software (www.radicaleye.com)
/usr/bin/dvips: ! DVI file can't be opened.
sh: /var/www/html/moodle/filter/tex/mimetex.linux: Permission denied
This is dvips(k) 5.95a Copyright 2005 Radical Eye Software (www.radicaleye.com)
/usr/bin/dvips: ! DVI file can't be opened.
sh: /var/www/html/moodle/filter/tex/mimetex.linux: Permission denied
sh: /var/www/html/moodle/filter/tex/mimetex.linux: Permission denied
sh: /var/www/html/moodle/filter/tex/mimetex.linux: Permission denied
kpathsea: Running mktexfmt latex.fmt
fmtutil: format directory `/.texmf-var/web2c' does not exist.
This is dvips(k) 5.95a Copyright 2005 Radical Eye Software (www.radicaleye.com)
/usr/bin/dvips: ! DVI file can't be opened.
convert: unable to open image `/backup/temp/latex/d1e56126337cd6e29b16fe759232ce90.ps': No such file or directory.

將/moodledata/temp/latex內修改權限便可以看到圖片了