Can't install on Firewire drive

I would like to install SuSE 10 b4 on an external Firewire drive but it fails. I have loaded the firewire components, but still failing ... Yast recognized my hardrive, I could select my partition and format it, but it failed to install when installation process began. I have this error message : code erreur -1012 définition du type de partition /dev/sda13 sur 102 error code -102 definition of the partition type /dev/sda13 on 102 iMac G5 20" 1Gb RAM / SuSE 10b4 ___________________________________________________________________________ Appel audio GRATUIT partout dans le monde avec le nouveau Yahoo! Messenger Téléchargez cette version sur http://fr.messenger.yahoo.com