[U-Boot-Users] problem on installing

When I tried to install ELDK on my computer, the following things happened: [root@RD8linux u-boot]# /opt/ppc-2004-02-16/install -d /opt/eldk ppc_82xx

Do you really want to install into /opt/eldk directory[y/n]?: y

Creating directories /opt/eldk/bin/rpm: error while loading shared libraries: libbz2.so.1: cannot open shared object file: No such file or directory

What's the problem?