fs2ram software package provides tools to preserve tmpfs contents across reboots, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install fs2ram
fs2ram is installed in your system.
Make ensure the fs2ram package were installed using the commands given below,
$ sudo dpkg-query -l | grep fs2ram *
You will get with fs2ram package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Administration Utilities |
| Package | fs2ram |
| Version | 0.3.12 |
| Description | tools to preserve tmpfs contents across reboots |
| Sub Section | admin |