Ekaterina Amez <ekaterina.amez@xxxxxxxxxxx> writes: > I'm installing postgres 9.6 in a CentOS 7 computer that already has > postgres v9.2 installed (version that comes with CentOS installer) and > I've seen the message of this mail's subject. > ... > failed to link /usr/bin/psql -> /etc/alternatives/pgsql-psql: /usr/bin/psql exists and it is not a symlink > ... I believe the issue here is that you've got Red Hat's postgresql packages installed, and they're not set up to participate in alternatives switching. I'd suggest removing those packages --- having them installed alongside PGDG postgres packages is going to lead to nothing but grief. regards, tom lane
