The documented procedure on the forums lists two methods of upgrading Postgres. Just let Discourse handle it. This requires 3 times the disk space. So if your DB is 100GB, you would need an additional 200GB free to do the upgrade. Obviously a huge problem for people with large installs. Follow the…

Upgrade Postgres with REALLY limited space

Wingtip August 30, 2021, 11:47am 9

All my posts here have been in an ongoing attempt to avoid doing that.

Topic		Replies	Views
Make (temporary) use of Network Storage for Restores, PSQL Update, Installation	16	135	February 14, 2025
Not enough disk space for upgrade when Postgres is upgraded Installation server-resources	8	988	June 8, 2024
PostgreSQL 12 update Announcements	1	15421	December 1, 2023
Discourse on postgres 12 breaks upgrades Installation	17	1014	August 27, 2021
Docker base image with PostgreSQL 10 released Announcements docker	26	4776	December 1, 2023