I’m trying to install freepbx using the tarball installer on a raspberry pi. It seems to me that the tarball installer mentioned on the wiki (for the one with 7.4 and 16.0 in the link. Sorry, I can’t paste a link)
I’m having issues getting extensions to call. They get No response. (And logging mentions DB function not being registered)
There are lots of modules usually missing. I would recommend to use a full image for raspi from here. http://www.raspberry-asterisk.org/
Take a min 32 GB SD-Card from the beginning, once you intend to upgrade something. For longterm-use m2.sata or external USB-drive would be better than SD.Card
as long as you intend to run freepbx in a virtual maschine, you may use the full distribution including centOS 7 or 8. In fact I also added in such an environment full postfix config and GeoIP.blocking with IPtables xt_tables.