For what reason do you wish to go trusted?
I ask you because using a shadow password is not standard under HP-UX ( it might have changed since I have no new boxes since 2010...) in other words you had an optional package for shadow password when going trusted is native... So what made you or whoever decide for shadow password? Because the reason may still be valid.
I had a server using shadow passwd, because of a software not being able to find the passwords in trusted mode ( I cant remember what it was, sorry...).
the reason you have to use pwunconv is to put back the passwords in /etc/passwd in order to be removed by the conversion and create the adequate files in ...
Found this:
Quote:
HP-UX PHI11i3 has the following requirements and restrictions:
Requires HP-UX 11i version 3.
Can be installed only on systems with shadowed passwords (that is, with passwords stored in the /etc/shadow file).
in:
Hewlett Packard Enterprise