I suggest you open up YaST and enter the root user password then goto:
YaST / Software / Software Management
Search first for dosfstools & then for ntfsprogs and make sure both applications are installed and install them if not installed. To change a FAT partition disk label, use the terminal command:
To change a NTFS partition Label use the following terminal command:
sudo /sbin/dosfslabel DEVICE [LABEL]
To get a complete run down on your options, use the terminal commands man dosfslabel & man ntfslabel. If you look at the file listing tab for dosfstools & ntfsprogs in Software Management, you will see many other commands (in bold) associated with these two packages.
sudo /usr/sbin/ntfslabel [options] device [new-label]