I want to install firebird 2.5 server on ubuntu 18.10
I followed this installing firebird 2.5, but got stuck in
sudo add-apt-repository ppa:mapopa
it says error
E: The repository 'http://ppa.launchpad.net/mapopa/ppa/ubuntu cosmic Release' does not have a Release file. N: Updating from such a repository can't be done securely and is therefore disabled by default. N: See apt-secure(8) manpage for repository creation and user configuration details.
so I followed to the manpage, but doesn't quite grasp what it tells me to solve the problem. There's a similar question to this, How to installing Firebird on Ubuntu 16.04 but it's just the same as installing firebird 2.5
I have no reason using Ubuntu 18.10 for this use case. Previously I thought about using docker for the Firebird server, so maybe the newest version is just fine. But things don't work as expected: the docker image can't read the database (probably I miss implement something too). So I tried to use the Firebird Ubuntu versions, got stuck, and then I came up with this question
So I downgrade to Ubuntu 16.04 and it works fine.