Read the "release notes", waste of time, had done that originally, then I remember in
Slackware in order to become root you have to su - to become root.

bobo@foo:~$ su -
Password:
root@foo:~# ufw enable
Firewall is active and enabled on system startup
root@foo:~#

Thanks Head_on_a_Stick!

Just upgraded to Chimaera, installed ufw gives me this error:
root@foo:/home/bobo# ufw enable
bash: ufw: command not found

Read the release notes and use the correct command to gain a root shell. You have used the wrong command and so PATH is not set correctly.

Installed gufw:
root@foo:/home/bobo# gufw
/usr/bin/gufw: line 2: [: =: unary operator expected                                                                                                                                         
ls: cannot access '/usr/lib/python*/site-packages/gufw/gufw.py': No such file or directory

thanks,