Lab 9.1: Use a local repository and manage packages

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Doel

Turn the installation ISO into a repository that survives a reboot, then find, install, inspect and undo packages.

Voordat je begint

Copy the RHEL 10 installation ISO to /root/ on server1 (or attach it to the VM as a DVD; then it is /dev/sr0).
Move any other .repo files to /root/repos-backup/ so you only use the local repository (move them back after the lab if you need them).

Taken

Mount the ISO on /repo in a way that survives a reboot.
Create the repository file /etc/yum.repos.d/local.repo with BaseOS and AppStream from the ISO. No GPG check.
Show that both repositories are enabled.
Find out which package provides the command semanage and install it.
Install httpd, show its configuration files, and find which package owns /etc/httpd/conf/httpd.conf.
Install the package group "Development Tools", look at the dnf history, and undo the group install.
Show which files of openssh-server were changed since it was installed.

Controleer je werk

#findmnt /repo
#dnf repolist
#rpm -q policycoreutils-python-utils httpd
#rpm -qc httpd
#dnf history | head -5
#dnf group list --installed

/repo is mounted (also after reboot).
dnf repolist shows local-BaseOS and local-AppStream.
semanage and httpd are installed; "Development Tools" is not installed anymore.

Hints

Toon de hints

fstab line for an ISO file: type iso9660, options defaults,loop. For the DVD drive: /dev/sr0 /repo iso9660 defaults 0 0.
baseurl=file:///repo/BaseOS — three slashes.
dnf provides '*/semanage'; rpm -qf FILE; rpm -V PACKAGE.

Oplossing

Toon de oplossing

Mount the ISO for good.

#mkdir /repo
#echo "/root/rhel-10.0-x86_64-dvd.iso /repo iso9660 defaults,loop 0 0" >> /etc/fstab
#systemctl daemon-reload
#mount -a

The repository file.

/etc/yum.repos.d/local.repo

[local-BaseOS]
name=Local BaseOS
baseurl=file:///repo/BaseOS
gpgcheck=0
 
[local-AppStream]
name=Local AppStream
baseurl=file:///repo/AppStream
gpgcheck=0

Check the repositories.
```
#dnf repolist
```

Find and install semanage.

#dnf provides '*/semanage'
#dnf install -y policycoreutils-python-utils

httpd and its files.

#dnf install -y httpd
#rpm -qc httpd
#rpm -qf /etc/httpd/conf/httpd.conf

Group install and undo.

#dnf group install -y "Development Tools"
#dnf history
#dnf -y history undo last

Use a local repository and manage packages

Doel

Voordat je begint

Taken

Controleer je werk

Hints

Oplossing

Mijn notities

Lessen voor dit lab

Commando's in dit lab