How to add a new hdd to a already installed suse 8.2 ?

Hello, how are you all ? i have suse 8.2 installed in the primary master and with 20 Gb of size and i would like to install a new seagate 80 Gb 7200 rpm hdd. I all ready installed the drive, but, when i go to yast-»system-»partinitionar, and create the partition, and assign the "/sw", When trying to use the new drive, i get "access denied". I don't know how to set permission to my user to use the new hdd. Best Regards Marco Oliveira