On 4/20/06, Robert Pfau robert.pfau@gmail.com wrote:

Hi I updated from 1.5.8 to 1.6.3 without any obvious errors. But now i see that my old and new math-pngs are no longer there i get the following error: **"Can't write to or create math output directory"

but i already chmoded all possible dirs to 0777 and the error still occurs.... math/ images/math images/tmp

so i activated the debugfile and found this hint. TeX: getHashPath, hash is: 5bf47f8c9e5d845a3bb424ab6d1d087b, path is: bla/w/images/math/5/b/f

so i looked for the designated dir and it didnt exist...so it looks like mw cant create this dir how can i fix this ?

It might have something to do with the umask. Look in includes/Math.php around line 127 for the code fragment

if( !@wfMkdirParents( $hashpath, 0755 ) ) { return $this->_error( 'math_bad_output' ); }

and add

$oldumask = umask(0);

before it and

umask( $oldumask );

after it, and try again.

I don't know what the umask is normally set to, so I have no idea whether this may work, but I notice that this is done in other places where directories are created, e.g., in includes/Images.php . Perhaps somebody with more experience could have a look whether this is at all plausible?

it is strange because 1.5.8 didnt seperate the pngs but 1.6.3 does... LocalSettings.php is exactly the same...

Yes, this changed. From the RELEASE-NOTES:

* changed directory hierarchy in images/math/. System upgrades from old to new hierarchy on the fly.

Jitse