-----Original Message----- From: mediawiki-l-bounces@Wikimedia.org [mailto:mediawiki-l-bounces@Wikimedia.org] On Behalf Of Rob Desbois Sent: Tuesday, 6 June 2006 12:00 AM To: mediawiki-l@wikimedia.org Subject: [Mediawiki-l] <math> fails with "PNG conversion failed"

I'm running MediaWiki 1.6.5, didn't have the math stuff installed orginally, but want to use <math> now. I've installed all of the required components, and everything seems to work well from the command-line:

[root@batcave mediawiki]# sudo -u apache ./math/texvc /var/www/html/mediawiki/images/tmp /var/www/html/mediawiki/images/tmp "y=x+2" UTF-8 /root/.dvipsrc: Permission denied /root/.dvipsrc: Permission denied This is dvips(k) 5.92b Copyright 2002 Radical Eye Software (www.radicaleye.com) ' TeX output 2006.06.05:0954' -> <texc.pro><aae443f0.enc ><f7b6d320.enc><texps.pro>. <cmr12.pfb><cmmi12.pfb>[1] Cdaa63ef966cc412541190bc8794731de<i>y</i> = <i>x</i> + 2<mi>y</mi><mo>=</mo><mi>x</mi><mo>+</mo><mn>2</mn>

The filename given appears in ./images/tmp with no problems there. On the Wiki itself I get the error "Failed to parse (PNG conversion failed; check for correct installation of latex, dvips, gs, and convert): ax^2 + bx + c = 0,"

Could the permission faults given be an issue? If not, what could be the problem here?

Had the same problem myself about a week ago. A lot of fiddling and I finally got things working. I eventually put my tmp dir to have "777" permissions with apache as the owner and group for the dir. I also made sure there was a user called apache that was a member of the apache group. At this point in time, that's about the extend of my knowlwdge :)

Regards, Andrew Lowe