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If I try to enable PostGIS with CREATE EXTENSION postgis; the error I see indicates that psql is looking for postgres.control in a 9.4 directory:

ERROR: could not open extension control file "/usr/share/postgresql/9.4/extension/postgis.control": No such file or directory

postgis.control exists at /usr/share/postgresql/9.5/extension/postgis.control

I don't have any need for two versions, and I don't know how I got myself into this situation. I'm on Ubuntu and just used synaptic to install I tried to migrate and got another affirmation that 9.5 is already installed:

sudo pg_upgradecluster 9.4 main
Error: target cluster 9.5/main already exists

What is the Right Way™️ to switch over to using 9.5 so I can actually use PostGIS?

  • Did you uninstall 9.4? – Richard Huxton Mar 23 '18 at 18:45
  • Now I did, but that just shot all my databases and roles and gave me a bunch of new problems. – Amanda Mar 23 '18 at 21:11

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