![]() On Debian or Ubuntu, run: $ sudo apt install postgresql-13ĭon’t start it yet, but before you do, you’ll want to make sure any configuration you need is transferred over to PostgreSQL 13. On RedHat or CentOS, run: $ sudo yum install postgresql13-server PostgreSQL versions up to 13 are currently supported. If you’re feeling brave, or reading this much later, feel free to swap “11” out for “12”. While some limited OpenNMS testing has been done with PostgreSQL 12, it is newly released at the time of this writing (Early October, 2019), so for now I would recommend installing 11. ![]() (On RedHat/CentOS, you’ll configure the Yum repository, and on Debian/Ubuntu you’ll configure their Apt repository.) Install PostgreSQL To configure the PGDG repository, all you should need to do is follow the link to your distribution under the “Binary packages” section of PostgreSQL’s download page. While most distributions provide some version of PostgreSQL, the best way to get the latest version is to use PostgreSQL’s official package repository. Getting the Latest PostgreSQL from the PostgreSQL Global Development Group (PGDG) Some basic instructions on how to do so are in Backup and Restore article. If you wish to migrate your OpenNMS database from an older cluster to a newer existing cluster already containing data, you will likely need to back up your OpenNMS database, upgrade PostgreSQL, and then restore. NOTE: This tutorial assumes you did not already have PostgreSQL 13 installed and in use for other things on your system. Here is a short tutorial on what you need to do. A hard switch over between database versions is stress - stress I don't need.Since OpenNMS Horizon 25 has a new requirement of PostgreSQL 10 or higher, it’s likely many of you are needing to look into how to go about upgrading it. My life as a programmer is about cranking out code, but even more, reducing stress. It means an almost instant rollback is possible if something bad happens. In your case, you could literally be running the same database under 10 and 14 on different ports, and switch between them in your application program to compare. I love this idea because it means you don't have to have a hard switch. If not, you just can't know before the current version. When did this come about? If you have Postgres 10, you just fire it up and look at the backups. For example, you make the move, and three weeks from now, you notice some anomaly in the database. In your case, with such a big jump, it's even more important to keep both versions. By the time I left that machine, I hadn't fired up Python 3.3 in five years, but why delete it, when it's tiny and might conceivably be useful, and most important, leaving it alone takes zero work? Right now, postgres is exactly the same version on all our machines, but we have moved from Python 3.8 to Python 3.10 and for quite a long time we interoperated - we could still run in both versions - and I had Python 2.7 and the eight versions 3.3 - 3.10 on my previous development machine without ever any problems. This might be easier, but the best solution is to have both if you need them, and explicitly manage which executable is actually running on which machine by careful configuration. I'd prefer to just have one version both locally and on my ec2 instance ![]() I have little experience with this and any help would be really appreciated. What would be the best way to approach this without it resulting in two versions of Postgres? Should I remove the current version of postgres and then upgrade to ubuntu 20.04, and then upgrade postgres from 12 to 14 using pg_upgrade? My main goal is to upgrade Postgres from version 10 to 14. So no data needs to be preserved or backed up. Just old portfolio projects with databases that I can drop and which I no longer have a need for. There are no databases of importance on my ec2 instance. I'd prefer to just have one version both locally and on my ec2 instance which would be version 14 of Postgres. But I've also read that it ends up with different versions of Postgres on Ubuntu as a result. I understand that if I were to upgrade 18.04 to a newer version that postegres would be updated as well. What I'm trying to do is have the same postgresql version on my ec2 instance that I have locally. ![]() I'm currently running an aws ec2 instance with ubuntu 18.04 and nginx as a web server. ![]() Hoping to get some advice when it comes to ubuntu and postgresql. ![]()
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