After trying apt-get install postgresql-9.4, updating, trying again etc etc. It seems I can't install it:
Couldn't find any package by regex 'postgresql-9.4'
I know there is a similar question in askubuntu but the answer there doesn't work either.
I need postgresql version 9.4 cause I'm doing a pg:backup from Heroku and I get this error if I don't have 9.4.
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This command installs the recent version for your distribution:
sudo apt-get install postgresql
postgresql-9.4is available since Utopic.
Here is a step by step guide to install Postgesql 9.4 for your Ubuntu (Utopic, Trusty, Precise, Lucid) version.
sudo add-apt-repository "deb https://apt.postgresql.org/pub/repos/apt YOUR_UBUNTU_VERSION_HERE-pgdg main"
For trusty:
sudo add-apt-repository "deb https://apt.postgresql.org/pub/repos/apt/ trusty-pgdg main"
To get your ubuntu version:
lsb_release -sc
Now import the public key and install:
wget --quiet -O - https://postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add - sudo apt-get update sudo apt-get install postgresql-9.4