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Subject: Re: I suggest improving install steps for CentOS 8
From: Daniel Gustafsson <daniel@yesql.se>
In-Reply-To: <20191114.113630.1398779383290103638.horimoto@clear-code.com>
Date: Thu, 14 Nov 2019 10:29:01 +0100
Cc: pgsql-docs@lists.postgresql.org,
 pgsql-www@postgresql.org
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Message-Id: <AA99A48E-BA5F-49BD-8B86-B9A7DB072D5B@yesql.se>
References: <20191114.113630.1398779383290103638.horimoto@clear-code.com>
To: Yasuhiro Horimoto <horimoto@clear-code.com>
Precedence: bulk

Adding -www as this isn't a documentation issue but a website issue.

> On 14 Nov 2019, at 03:36, Yasuhiro Horimoto <horimoto@clear-code.com> =
wrote:
>=20
> Hello,
>=20
> I have found a problem with the following page.
>=20
> page: https://www.postgresql.org/download/linux/redhat/
>=20
> I tried install PostgreSQL12 into CentOS 8 as written on this page.
> However, I couldn't install it by the following error.
>=20
>=20
> # dnf install -y =
https://download.postgresql.org/pub/repos/yum/reporpms/EL-8-x86_64/pgdg-re=
dhat-repo-latest.noarch.rpm
> # dnf install -y postgresql12
> Failed to set locale, defaulting to C
> PostgreSQL 10 for RHEL/CentOS 8 - x8 100 kB/s | 539 kB     00:05
> PostgreSQL 11 for RHEL/CentOS 8 - x8 121 kB/s | 629 kB     00:05
> PostgreSQL 12 for RHEL/CentOS 8 - x8  91 kB/s | 471 kB     00:05
> PostgreSQL 9.4 for RHEL/CentOS 8 - x  75 kB/s | 361 kB     00:04
> PostgreSQL 9.5 for RHEL/CentOS 8 - x 108 kB/s | 425 kB     00:03
> PostgreSQL 9.6 for RHEL/CentOS 8 - x  55 kB/s | 518 kB     00:09
> No match for argument: postgresql12
> Error: Unable to find a match
>=20
>=20
> There is a workaround for this problem.
> I executed a below command.
> I could install it.
>=20
> # dnf module disable postgresql
>=20
> This problem has already reported to Red Hat Bugzilla.
> (https://bugzilla.redhat.com/show_bug.cgi?id=3D1718201#c1)
>=20
> However, this problem has been already closed.
> Because it seems that is not a bug.

Agreed, it's not a bug.

> Therefore I suggest that add a workaround in this document like an
> attachment.
>=20
> Thanks,
> diff --git a/templates/pages/download/linux/redhat.html =
b/templates/pages/download/linux/redhat.html
> index 568085a..3b0cbaf 100644
> --- a/templates/pages/download/linux/redhat.html
> +++ b/templates/pages/download/linux/redhat.html
> @@ -51,6 +51,9 @@ The PostgreSQL Yum Repository currently supports:
> <p><strong><sup>*</sup>Note</strong>: due to the shorter support cycle
> on Fedora, all supported versions of PostgreSQL are not available on =
this platform. We do not recommend
> using Fedora for server deployments.
> +
> +<p><strong><sup>*</sup>Note</strong>: PostgreSQL can't install in =
CentOS 8 or RedHat Enterprise 8 just execute the following steps.
> +We need to execute "dnf module disable postgresql" before install the =
client package.

This doesn't explain what the problem is, and why the above command =
works (or
what side effects it may have).  I don't think it's a bad idea to =
mention this
problem on the page but we should phrase it in such a way that it's =
clear what
the underlying problem is, and what the fix means.  Linking to offical =
RPM docs
can be a good way too?

cheers ./daniel=