Re: pg_ctl pointing postgres 9.5.4 after installation of postgres 10

The same question I have asked in stackoverflow and dba.stackexchange, I
did not get any reply there also.

1.
https://dba.stackexchange.com/questions/214671/pg-ctl-still-pointing-to-9-5-4-after-upgrade-to-postgres-10
2.
https://stackoverflow.com/questions/51802990/pg-ctl-still-pointing-to-9-5-4-after-upgrade-to-postgres-10-in-ubuntu-14

On Sun, Aug 12, 2018 at 12:32 AM, Debraj Manna <subharaj(dot)manna(at)gmail(dot)com>
wrote:

> Hi
>
> I have updated postgres from 9.5.4 to the latest 10.4.
>
> But after installation I am seeing
>
> support(at)platform1:/usr/bin$ ls -lah pg_ctl
> lrwxrwxrwx 1 root root 34 Jun 13 08:59 pg_ctl ->
> /usr/lib/postgresql/9.5/bin/pg_ctl
>
> The issue appears similiar to the one discussed here
> https://stackoverflow.com/a/24763074/785523.
>
> To install postgres 10 I have followed the below steps:-
>
> sudo add-apt-repository "deb http://apt.postgresql.org/pub/repos/apt/ trusty-pgdg main"
>
> wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
>
> sudo apt-get update
>
> sudo apt-get install postgresql-10
>
> Then performed the data migration using pg_upgrade and then
> removed postgres 9.5
>
> Now posgres -V is also failing with the below error
>
> support(at)platform1:/usr/bin$ postgres -V
> The program 'postgres' is currently not installed. You can install it by
> typing:
> sudo apt-get install postgres-xc
>
> Can someone let me know what is wrong and how can I fix it?
>