To offline environment construction table of contents
CentOS
BaseOS/AppStream
How to install BaseOS / AppStream packages.
Mount the installation media.
$ sudo mount CentOS-8.2.2004-x86_64-dvd1.iso /media
$ sudo ls -l /media/
$ sudo cp -v /media/media.repo /etc/yum.repos.d/centos8.repo
$ sudo chmod 644 /etc/yum.repos.d/centos8.repo
$ sudo ls -l /etc/yum.repos.d/centos8.repo
Set the repository in /etc/yum.repos.d/centos8.repo.
Change before
[InstallMedia]
name=CentOS Linux 8
mediaid=None
metadata_expire=-1
gpgcheck=0
cost=500
** After change **
[Local-BaseOS]
name=CentOS-8 - Local - BaseOS
metadata_expire=-1
gpgcheck=1
enabled=1
baseurl=file:///media/BaseOS/
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
[Local-AppStream]
name=CentOS-8 - Local - AppStream
metadata_expire=-1
gpgcheck=1
enabled=1
baseurl=file:///media/AppStream/
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
Verification
$ sudo dnf clean all
$ sudo dnf repolist
Failed to set locale, defaulting to C
CentOS-8 - AppStream 0.0 B/s | 0 B 00:01
CentOS-8 - Base 0.0 B/s | 0 B 00:01
CentOS-8 - Extras 0.0 B/s | 0 B 00:01
CentOS Linux 8 - AppStream 34 MB/s | 5.7 MB 00:00
CentOS Linux 8 - BaseOS 60 MB/s | 2.2 MB 00:00
Failed to synchronize cache for repo 'AppStream', ignoring this repo.
Failed to synchronize cache for repo 'BaseOS', ignoring this repo.
Failed to synchronize cache for repo 'extras', ignoring this repo.
Last metadata expiration check: 0:00:01 ago on Mon Sep 14 14:48:23 2020.
repo id repo name status
InstallMedia-AppStream CentOS Linux 8 - AppStream 4901
InstallMedia-BaseOS CentOS Linux 8 - BaseOS 1672
EPEL
How to install the EPEL package.
Execute the following commands for the number of threads you want to download.
wget -c -r -N --no-parent https://dl.fedoraproject.org/pub/epel/8/Everything/x86_64/
If you have CentOS in your online environment, reposync is easier than wget.
The data capacity will be about 20GB.
Set the repository in /etc/yum.repos.d/epel8.repo.
[Local-EPEL]
name=CentOS-8 - Local - EPEL
metadata_expire=-1
gpgcheck=0
enabled=1
baseurl=file:///mnt/host/epel/dl.fedoraproject.org/pub/epel/8/Everything/x86_64
# gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
Verification
$ sudo dnf clean all
$ sudo dnf repolist
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