Update fails:

Trying to update to 3.8 from 3.7, automatically and I get this error. The file permissions are now 755 (tried 777 also, didn’t work), although they were originally 644)

Warning: copy(/var/www/html/wp-admin/includes/update-core.php): failed to open stream: Permission denied in /var/www/html/wp-admin/includes/class-wp-filesystem-direct.php on line 200

Could not copy files.

Installation Failed

Thanks!