Database file compatibility between OS

[zhigang wang <zhigang.wang@xxxxxxxxx>]

My instance of PostgreSQL 10.1 is running on Solaris 10 x86. I am going to change the OS to Ubuntu 16.04. Here is my plan for the database server:

- Shutdown the server

- Copy the local db folder /data/db/pgsql to a storage server.

- Install Ubuntu and PostgreSQL 10.1

- Copy /data/db/pgsql from storage server back to local.

- Start the server.

Will this work? Or I have to pg_dump then pg_restore to recreate the database instance?

Thanks,

Zhigang