RHCSA Rapid Track

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:

1. 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

2. 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

3. 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

4. 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.

1. Use yum config-manager --disable to disable the rht-updates repository.

   [root@servera ~]# yum config-manager --disable rht-updates

2. 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!

3. 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.

1. Use yum config-manager --enable to enable the rht-updates repository.

   [root@servera ~]# yum config-manager --enable rht-updates

2. 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!

3. 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 ~]$