RH124 - ch14s08

From workstation run the lab software-repo start command. The command runs a start script that determines whether the host servera is reachable on the network. The script also ensures that the yum package is installed.

[student@workstation ~]$ lab software-repo start

Use the ssh command to log in to servera as the student user.

[student@workstation ~]$ ssh student@servera
...output omitted...
[student@servera ~]$

Use the sudo -i command to switch to root at the shell prompt.

[student@servera ~]$ sudo -i
[sudo] password for student: student
[root@servera ~]#

Configure software repositories on servera to obtain custom packages and updates from the following URL:

Custom packages provided at http://content.example.com/rhel8.2/x86_64/rhcsa-practice/rht
Updates of the custom packages provided at http://content.example.com/rhel8.2/x86_64/rhcsa-practice/errata

Use yum config-manager to add the custom packages repository.

[root@servera ~]# yum config-manager \
--add-repo "http://content.example.com/rhel8.2/x86_64/rhcsa-practice/rht"
Adding repo from: http://content.example.com/rhel8.2/x86_64/rhcsa-practice/rht

Examine the software repository file created by the previous command in the /etc/yum.repos.d directory. Use the vim command to edit the file and add the gpgcheck=0 parameter to disable the GPG key check for the repository.

[root@servera ~]# vim \
/etc/yum.repos.d/content.example.com_rhel8.2_x86_64_rhcsa-practice_rht.repo
[content.example.com_rhel8.2_x86_64_rhcsa-practice_rht]
name=created by dnf config-manager from http://content.example.com/rhel8.2/x86_64/rhcsa-practice/rht
baseurl=http://content.example.com/rhel8.2/x86_64/rhcsa-practice/rht
enabled=1
gpgcheck=0

Create the /etc/yum.repos.d/errata.repo file to enable the updates repository with the following content:

[rht-updates]
name=rht updates
baseurl=http://content.example.com/rhel8.2/x86_64/rhcsa-practice/errata
enabled=1
gpgcheck=0

Use the yum repolist all command to list all repositories on the system:

[root@servera ~]# yum repolist all
repo id                                                repo name       status
content.example.com_rhel8.2_x86_64_rhcsa-practice_rht  created by .... enabled
rht-updates                                            rht updates     enabled
...output omitted...

Disable the rht-updates software repository and install the rht-system package.

Use yum config-manager --disable to disable the rht-updates repository.
```
[root@servera ~]# yum config-manager --disable rht-updates
```

List, and then install, the rht-system package:

[root@servera ~]# yum list rht-system
Available Packages
rht-system.noarch  1.0.0-1 content.example.com_rhel8.2_x86_64_rhcsa-practice_rht
[root@servera ~]# yum install rht-system
Dependencies resolved.
================================================================================
 Package            Arch           Version                Repository       Size
================================================================================
Installing:
 rht-system         noarch         1.0.0-1               content..._rht   3.7 k
...output omitted...
Is this ok [y/N]: y
...output omitted...
Installed:
  rht-system-1.0.0-1.noarch
Complete!

Verify that the rht-system package is installed, and note the version number of the package.

[root@servera ~]# yum list rht-system
Installed Packages
rht-system.noarch  1.0.0-1 @content.example.com_rhel8.2_x86_64_rhcsa-practice_rht

Enable the rht-updates software repository and update all relevant software packages.

Use yum config-manager --enable to enable the rht-updates repository.
```
[root@servera ~]# yum config-manager --enable rht-updates
```

Use the yum update command to update all software packages on servera.

[root@servera ~]# yum update
Dependencies resolved.
================================================================================
 Package            Arch           Version                Repository       Size
================================================================================
Upgrading:
 rht-system         x86_64         1.0.0-2.el7            rht-updates      3.9 k
...output omitted...
Is this ok [y/N]: y
...output omitted...
Complete!

Verify that the rht-system package is upgraded, and note the version number of the package.

[root@servera ~]# yum list rht-system
Installed Packages
rht-system.noarch      1.0.0-2.el7         @rht-updates

Exit from servera.

[root@servera ~]# exit  
logout
[student@servera ~]$ exit 
logout
Connection to servera closed.
[student@workstation ~]$

Finish

On workstation, run the lab software-repo finish script to finish this exercise. This script removes all the software repositories and packages installed on servera during the exercise.

[student@workstation ~]$ lab software-repo finish

This concludes the guided exercise.

Discuss Red Hat System Administration I

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RH124 Chapter 15 Lab 3: Install zsh Package

VictoriaB97

16 sty 2024

Hello,I am trying to finish up Lab 3 of the Chapter 15 Comprehensive Review Labs in RH124, and when I type in sudo dnf install zsh for the 6th specification of the lab, I get an error message basically saying that it failed to download metadata for the repo 'ansible-2.9-for-rhel-9-x86_64-rpms', and that they could not download repomd.xml. It provided a 404 status code.Can someone please let me know what the problem is, and if there is a current workaround? Thanks.

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Red Hat System Administration I | Guided Exercise: Explain and Investigate RPM Software Pack

AbeHiero

10 lis 2023

I cannot start the lab with command: lab start software-rpm. I get this error:ModuleNotFoundError: No module named 'rhcsa-classroom'Script software-rpm not in course library rhcsa-classroom Anyone else see this?

172

Red Hat System Administration I (RH124)

Haley_Ruccio

19 lip 2023

The first of two courses covering the core system administration tasks needed to manage Red Hat Enterprise Linux serversRed Hat System Administration I (RH124) is designed for IT professionals without previous Linux system administration experience. The course provides students with Linux administration competence by focusing on core administration tasks. This course also provides a foundation for students who plan to become full-time Linux system administrators by introducing key command-line concepts and enterprise-level tools. This course is the first of a two-course series that takes a computer professional without Linux system administration knowledge to become a fully capable Linux administrator. These concepts are further developed in the follow-on course, Red Hat System Administration II (RH134).This course is based on Red Hat® Enterprise Linux 9.0.Course content summaryIntroduce Linux and the Red Hat Enterprise Linux ecosystem.Run commands and view shell environments.Manage, organize, and secure files.Manage users, groups and user security policies.Control and monitor systemd services.Configure remote access using the web console and SSH.Configure network interfaces and settings.Manage software using DNFAudience for this courseThe primary persona is a technical professional with current or pending responsibilities as a Linux enterprise or cloud system administrator.This course is popular in Red Hat Academy, and is targeted at the student who is planning to become a technical professional using Linux.Prerequisites for this courseBasic technical user skills with computer applications on some operating systems are expected.Take our free assessment to gauge whether this offering is the best fit for your skills.Technology considerationsThere are no special technical requirements for this course.This course is not designed for bring your own device (BYOD).Internet access is not required but is recommended so that students can research and browse Red Hat online resources.

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Revision: rh124-8.2-df5a585