Özet olarak bb-admin/upgrade.php dosyası içindeki ilk birkaç satırı silin diyor. Baktım, kodlarda eğer safe mode açık ise işlemi öldürüyor. O satırı iptal ediniz.

Kodlar dosyanın en başında...


[ AÇ ]

bb-admin/upgrade.php

[ BUL ]

// Remove these lines if you want to upgrade and are using safe mode
if ( ini_get('safe_mode') )
    die("You're running in safe mode which does not allow this upgrade
    script to set a running time limit.  Depending on the size of your
    database and on which parts of the script you are running, the script
    can take quite some time to run (or it could take just a few seconds).
    To throw caution to the wind and run the script in safe mode anyway,
    remove the first few lines of code in the <code>bb-admin/upgrade.php</code>
    file. Backups are always a good idea.");
// Stop removing lines

[ BUNUNLA DEĞİŞTİR ]

// Remove these lines if you want to upgrade and are using safe mode
/*
if ( ini_get('safe_mode') )
    die("You're running in safe mode which does not allow this upgrade
    script to set a running time limit.  Depending on the size of your
    database and on which parts of the script you are running, the script
    can take quite some time to run (or it could take just a few seconds).
    To throw caution to the wind and run the script in safe mode anyway,
    remove the first few lines of code in the <code>bb-admin/upgrade.php</code>
    file. Backups are always a good idea.");
*/
// Stop removing lines