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I have a Redhat 7 system on loan from a customer in order to install a 32-bit application. To get the application to work, I need to install the gtk2.i686 toolkit.

By doing this command:

yum list --showduplicates gtk2

I can see the installed 64-bit package is:

gtk2.x86_64                               2.24.31-1.el7                                     @rhel-7-server-rpms

So I try to install the matching 32-bit version, as follows:

yum install gtk2-2.24.31-1.el7.i686

This leads to a list of dependencies, and gives the approval prompt:

Install  1 Package  (+79 Dependent packages)

Upgrade             (  5 Dependent packages)

Total size: 30 M

Total download size: 24 M

Is this ok [y/d/N]: 

But, when I agree, it fails on a slew of "could not resolve host errors", e.g.

zlib-1.2.7-18.el7.i686.rpm     FAILED                                          

https://rhs6.loc/pulp/repos/Default_Organization/Library/content/dist/rhel/server/7/7Server/x86_64/os/Packages/z/zlib-1.2.7-18.el7.i686.rpm: [Errno 14] curl#6 - "Could not resolve host: rhs6.loc; Unknown error"

Trying other mirror.

I get similar errors when I do a "yum repolist".

# yum repolist

Loaded plugins: langpacks, product-id, search-disabled-repos, subscription-manager



https://rhs6.loc/pulp/repos/Default_Organization/Library/content/dist/rhel/server/7/7Server/x86_64/ansible/2.6/os/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: rhs6.loc; Unknown error"

Trying other mirror.

https://rhs6.loc/pulp/repos/Default_Organization/Library/content/dist/rhel/server/7/7Server/x86_64/extras/os/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: rhs6.loc; Unknown error"

Trying other mirror.

https://rhs6.loc/pulp/repos/Default_Organization/Library/content/dist/rhel/server/7/7Server/x86_64/optional/os/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: rhs6.loc; Unknown error"

Trying other mirror.

https://rhs6.loc/pulp/repos/Default_Organization/Library/content/dist/rhel/server/7/7Server/x86_64/os/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: rhs6.loc; Unknown error"

Trying other mirror.

https://rhs6.loc/pulp/repos/Default_Organization/Library/content/dist/rhel/server/7/7Server/x86_64/sat-maintenance/6/os/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: rhs6.loc; Unknown error"

Trying other mirror.

https://rhs6.loc/pulp/repos/Default_Organization/Library/content/dist/rhel/server/7/7Server/x86_64/sat-tools/6.3/os/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: rhs6.loc; Unknown error"

Trying other mirror.

https://rhs6.loc/pulp/repos/Default_Organization/Library/content/dist/rhel/server/7/7Server/x86_64/sat-tools/6.4/os/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: rhs6.loc; Unknown error"

Trying other mirror.

https://rhs6.loc/pulp/repos/Default_Organization/Library/content/dist/rhel/server/7/7Server/x86_64/rhscl/1/os/repodata/repomd.xml: [Errno 14] curl#6 - "Could not resolve host: rhs6.loc; Unknown error"

Trying other mirror.

repo id                                            repo name                                              status

epel/x86_64                                        Extra Packages for Enterprise Linux 7 - x86_64         12,908

google-chrome                                      google-chrome                                               3

!rhel-7-server-ansible-2.6-rpms/x86_64             Red Hat Ansible Engine 2.6 RPMs for Red Hat Enterprise     18

!rhel-7-server-extras-rpms/x86_64                  Red Hat Enterprise Linux 7 Server - Extras (RPMs)       1,063

!rhel-7-server-optional-rpms/x86_64                Red Hat Enterprise Linux 7 Server - Optional (RPMs)    17,348

!rhel-7-server-rpms/x86_64                         Red Hat Enterprise Linux 7 Server (RPMs)               23,690

!rhel-7-server-satellite-maintenance-6-rpms/x86_64 Red Hat Satellite Maintenance 6 (for RHEL 7 Server) (R     26

!rhel-7-server-satellite-tools-6.3-rpms/x86_64     Red Hat Satellite Tools 6.3 (for RHEL 7 Server) (RPMs)     94

!rhel-7-server-satellite-tools-6.4-rpms/x86_64     Red Hat Satellite Tools 6.4 (for RHEL 7 Server) (RPMs)     73

!rhel-server-rhscl-7-rpms/x86_64                   Red Hat Software Collections RPMs for Red Hat Enterpri 10,935

repolist: 66,158

This command:

subscription-manager status

Show the status is current.

The command

nslookup google.com

resolves correctly, and I can browser normally.

Here are the contents of /etc/resolv.conf

# Generated by NetworkManager

search othecompany.dom

nameserver 1.1.1.1

If I try a curl command on any of the repos urls generated by the yum repolist, they aren't found by the dns server.

So, for some reason, it seems the names in the RedHat 7 repos aren't available on a public DNS. Maybe they're on the other company's DNS server?

It is not a maybe, the names are part of a private DNS space, and they are apparently pointing to an internal Satellite setup.

Changing the DNS for a public DNS name as Google won't work solving private DNS names only known to the organisation DNS servers.

If they are having internal DNS setup problems, and/or Satellite problems, file a ticket with your client help desk.

Otherwise, you wont normally be able to upgrade/install RH packages under their contract.

See for reference Red Hat Satellite - The best way to manage your Red Hat infrastructure

also Understanding Red Hat Content Delivery Network Repositories and their usage with Satellite 6