[Resolved] regarding the permissions...

[lsobrino]

the /tmp directory has all the permissions on it! (drwxrwxrwt); once the file is created by the mysql dump, the file has "rw-rw-rw-", but the owner is mysql and the group is mysql.

i'm not sure if the problem might be that the process that is trying to delete the file is a php one instead of a mysql one, and therefore the process has no permits on that file.

if this were the problem, how could i fix it? :o(

[pete_bisby]

You could always get PHP to change the permissions of the file that is being created:

chmod($filename, 0777);

At least this way you hsould be able to delete the file later, if you so wish.