When trying to upload a jpg picture (~400kb) to our MediaWiki at http://blueobelisk.sf.net, we consistently get the error:
Could not copy file "/tmp/phpe6x9u0" to "/home/groups/b/bl/blueobelisk/htdocs/mediawiki-1.6.7/images/temp/d/d4/20090330125511!BODinnerSLC2009.jpg".
After manually chmod o+w, the above step worked, but then we got an error in the next step:
Could not copy file "/home/groups/b/bl/blueobelisk/htdocs/mediawiki-1.6.7/images/temp/d/d4/20090330130140!BODinnerSLC2009.jpg" to "/home/groups/b/bl/blueobelisk/htdocs/mediawiki-1.6.7/images/d/d4/BODinnerSLC2009.jpg".
I did not bother to fiddle around with permissions any further because there seems to a more fundamental problem and this should work out of the box, I guess.
You help here would be greatly appreciated. :-)