Subject: Re: install Postgres on RHED 7
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From: Kris Deugau <kdeugau@vianet.ca>
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Date: Wed, 19 Dec 2018 17:40:37 -0500
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Pepe TD Vo wrote:
> I have downloaded 
> https://download.postgresql.org/pub/repos/yum/11/redhat/rhel-7server-x86_64/repodata/repo 
> <https://download.postgresql.org/pub/repos/yum/11/redhat/rhel-7server-x86_64/repodata/repomd.exl:>md.xml, 
> what location should I put it in?  Also, I saw drmp folder, do I need to 
> download this folder too?

Unless you're maintaining the repository you shouldn't need to manually 
download parts of it;  that's what tools like yum are for.  (I'm not 
sure trying to hand-feed parts of a repository to yum is going to work 
well anyway;  parts of the local cache will end up mismatched and yum 
may delete the whole set as corrupt.  I haven't done much with RPM-based 
systems in a while so I'm not sure what yum would do.)

If yum can't access a public repository like PGDG, you'll need to 
investigate the network path and DNS results as suggested a couple of 
times.  Looking back up the messages you may also need to contact Red 
Hat support for assistance adding a third-party repository to the yum 
configuration.  The error you reported doesn't seem to make sense to me 
for a third-party repository, only for the primary official Red Hat one(s).

It's also sounding a little like you're behind a restrictive firewall 
that's blocking access;  in that case you should either work with your 
network administrators to open access, or skip the regular repository 
access entirely and manually download the .rpm package files you need 
for the Postgres components you want to eg a USB stick.  Or to another 
server that you *can* access from the machine you want to do the install on.

At that point you're back to "try to install this package file, see what 
dependencies it's missing, download the missing dependencies", and 
repeat until you've got things installed.  I don't recommend this;  for 
complex packages it can take hours.  And you have to do it all over 
again when a package update comes out.

-kgd