RHCSA Rapid Track

Reset your serverX system.

1. Configure the system to obtain software from two classroom repositories:

   • Classroom packages provided at http://content.example.com/rhel7.0/x86_64/rht

   • Updates provided at http://content.example.com/rhel7.0/x86_64/errata

   1. Use yum-config-manager to add the classroom packages repository.

      [root@serverX ~]# yum-config-manager --add-repo="http://content.example.com/rhel7.0/x86_64/rht"
      Loaded plugins: langpacks
      adding repo from: http://content.example.com/rhel7.0/x86_64/rht
      
      [content.example.com_rhel7.0_x86_64_rht]
      name=added from: http://content.example.com/rhel7.0/x86_64/rht
      baseurl=http://content.example.com/rhel7.0/x86_64/rht
      enabled=1
      

   2. Create the file /etc/yum.repos.d/errata.repo to enable the “Updates” repository with the following content:

      [updates]
      name=Red Hat Updates
      baseurl=http://content.example.com/rhel7.0/x86_64/errata
      enabled=1
      gpgcheck=0
      

2. Use yum-config-manager to disable the classroom packages repository.

   [root@serverX ~]# yum-config-manager --disable content.example.com_rhel7.0_x86_64_rht
   Loaded plugins: langpacks
   ================= repo: content.example.com_rhel7.0_x86_64_rht =================
   [content.example.com_rhel7.0_x86_64_rht]
   ...
   enabled = 0
   ...

3. Update all relevant software provided using yum update.

   [root@serverX ~]# yum update -y

4. Verify that there are two versions of the kernel installed. Which version is currently in use?

   [root@serverX ~]# yum list kernel
   
   [root@serverX ~]# uname -r
   
   

5. Reboot your serverX, then repeat the previous step. Which version is currently in use?

   [root@serverX ~]# yum list kernel
   
   [root@serverX ~]# uname -r
   
   

6. List, then install, the rht-system package.

   [root@serverX ~]# yum list rht*
   Loaded plugins: langpacks
   Available Packages
   rht-system.noarch                      1.0.0-2.el7                       updates
   [root@serverX ~]# yum -y install rht-system
   Loaded plugins: langpacks
   Resolving Dependencies
   ...