I've installed iftop and iotop using nerdpack. iftop runs fine.   Have rebooted since installing iotop, error doesn't change. UNRAID version 6.8.0   Trying to run iotop, yields the following error: root@Tower:~# iotop libffi.so.7: cannot open shared object file: No such file or directory To run an uninstalled copy of iotop, launch iotop.py in the top directory   I am unable to find iotop.py:   root@Tower:~# find / -name 'iotop.*' /usr/man/man8