Update URL Repo CentOS 8

The "Failed to download metadata for repo 'AppStream'" error on CentOS 8 occurs because CentOS Linux 8 reached its End-Of-Life (EOL) on December 31, 2021. The official repositories were moved to a permanent vault, so standard commands can no longer find the correct mirrors

cd /etc/yum.repos.d/
sudo sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
sudo sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*

sudo yum clean all
sudo yum update -y

automount ext4 partition

get UUID:

blkid -c /dev/null

or

lsblk -f

to list all block devices and their UUIDs example result:

/dev/sda1: UUID="38c9a247-2321-4e73-ac31-b7e7214ebd37" TYPE="xfs"
/dev/sda2: UUID="56a8f0c9-29ff-48e6-a664-f53f9a4123ca" TYPE="swap"
/dev/sda3: UUID="03f43331-0fdb-4cef-8b93-e199d92b0010" TYPE="xfs"
/dev/sdb1: UUID="50433e4c-a9ba-4f55-8c44-9ccb5430903d" TYPE="ext4"
/dev/sdb2: UUID="a4ecb7f7-3b91-4cc3-8867-8222657b59fc" TYPE="ext4"

create directory for mount:

mkdir /media/Storage

edit fstab:

vi /etc/fstab

add this line:

UUID=a4ecb7f7-3b91-4cc3-8867-8222657b59fc /media/Storage ext4 defaults 0 2

Update URL Repo CentOS 7

URL Repo CentOS 7 Setelah EOL 30 Juni 2024, pada server CentOS 7 tidak bisa lagi instalasi update package dan muncul error yang memberitahukan repo sudah tidak ada ( mirror repo sudah di hapus dari server repository server CentOS 7). Bagi yang masih menggunakan CentOS 7 agar beralih ke CentOS ke versi terbaru. Untuk yang masih bertahan menggunakan CentOS 7 bisa dialihkan mirror repo dengan langkah-langkah sebagai berikut:
1. Buat folder Backup repo

mkdir /etc/yum.repos.d/old

2. Pindahkan semua repo CentOs dan Epel repo ke direktori old

mv /etc/yum.repos.d/CentOS*.repo /etc/yum.repos.d/old/
mv /etc/yum.repos.d/epel*.repo /etc/yum.repos.d/old/

3. Buat file repo baru CentOS.repo

vi /etc/yum.repos.d/CentOS.repo

masukan baris berikut

[base]
name=CentOS-$releasever - Base
baseurl=http://archive.kernel.org/centos-vault/7.9.2009/os/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

#released updates
[updates]
name=CentOS-$releasever - Updates
baseurl=http://archive.kernel.org/centos-vault/7.9.2009/updates/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

#additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
baseurl=http://archive.kernel.org/centos-vault/7.9.2009/extras/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

#additional packages that extend functionality of existing packages
[centosplus]
name=CentOS-$releasever - Plus
baseurl=http://archive.kernel.org/centos-vault/7.9.2009/centosplus/$basearch/
enabled=0
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

4. Buat baru file repo epel.repo

vi /etc/yum.repos.d/epel.repo

masukan baris berikut

[epel]
name=Extra Packages for Enterprise Linux 7 - $basearch
baseurl=https://archives.fedoraproject.org/pub/archive/epel/7/$basearch
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
metadata_expire=never
 
[epel-debuginfo]
name=Extra Packages for Enterprise Linux 7 - $basearch - Debug
baseurl=https://archives.fedoraproject.org/pub/archive/epel/7/$basearch/debug
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
gpgcheck=1
metadata_expire=never
 
[epel-source]
name=Extra Packages for Enterprise Linux 7 - $basearch - Source
baseurl=https://archives.fedoraproject.org/pub/archive/epel/7/SRPMS
enabled=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-7
gpgcheck=1
metadata_expire=never

5. Hapus metadata existing

yum clean all

6. Memuat list paket yang tersedia

	
yum check-update

install php 8.1 & MariaDB on CentOS 7

yum-config-manager --disable 'remi-php*'
yum-config-manager --enable remi-php81
yum install php




vim /etc/yum.repos.d/MariaDB.repo

[mariadb]
name = MariaDB
baseurl = http://yum.mariadb.org/10.6/centos7-amd64
gpgkey=https://yum.mariadb.org/RPM-GPG-KEY-MariaDB
gpgcheck=1

yum install MariaDB-server

Firewalld open port

firewall-cmd --zone=public --add-port=80/tcp

firewall-cmd --permanent --zone=public --add-port=80/tcp

firewall-cmd --zone=public --add-service=http

firewall-cmd --permanent --zone=public --add-service=http


firewall-cmd --permanent --add-port=8080/tcp
firewall-cmd --reload

CentOS 7.0 end of life repository

Merubah repository CentOS setelah mirrorlist End of Life

What

CentOS sudah end of life pada tanggal 30 Juni 2024. Hal ini mengakibatkan masalah pada saat kita akan download atau install menggunakan yum dari repository.

When/Why

Karena mirrorlist.centos.org sudah tidak aktif, beberapa konfigurasi repo harus dirubah agar download dapat berjalan kembali.

How

Untuk merubahnya, lakukan perintah masal sesuai yang ada pada langkah berikut menggunakan user root atau sudo root di SSH server:

1. sed -i s/mirror.centos.org/vault.centos.org/g /etc/yum.repos.d/*.repo
2. sed -i s/^#.*baseurl=http/baseurl=http/g /etc/yum.repos.d/*.repo
3. sed -i s/^mirrorlist=http/#mirrorlist=http/g /etc/yum.repos.d/*.repo
4. yum clean all && yum -y update


Penjelasan: perintah di atas akan melakukan:
1. merubah semua mirror.centos.org menjadi vault.centos.org pada .repo files.
2. membuka comment (sed -i s/^#.*baseurl=http/baseurl=http/g) di bagian baseurl pada .repo files.
3. menambah comment (sed -i s/^mirrorlist=http/#mirrorlist=http/g) di bagian mirrorlist pada .repo files.

Install PHP 5.6 on CentOS 7

1. To install PHP 5.6, you have to install and enable EPEL and Remi repository to your CentOS 7 system using the commands below.

# yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
# yum install http://rpms.remirepo.net/enterprise/remi-release-7.rpm

2. Next, install yum-utils which is an assortment of utilities that integrate with yum to enhance its default features, giving it more advanced package management options and also making it easier to use.

A few of its important features include manipulating repositories, enabling or disabling packages on the go and lots more, without any manual configurations.

# yum install yum-utils

3. One of the most important program provided by yum-utils is yum-config-manager, which you can use to active Remi repository as the default repository for installing various PHP versions. For example, if you want to install PHP 5.5, PHP 5.6 or PHP 7.2 on CentOS 7, just enable it and install as shown.

# yum-config-manager --enable remi-php55   [Install PHP 5.5]
# yum-config-manager --enable remi-php56   [Install PHP 5.6]
# yum-config-manager --enable remi-php72   [Install PHP 7.2]

4. Now that you’ve enabled selected versions of PHP, you can install PHP (here, we have chosen to install PHP 5.6) with all needed modules as follows

# yum-config-manager --enable remi-php56   [Install PHP 5.6]
# yum install php php-mcrypt php-cli php-gd php-curl php-mysql php-ldap php-zip php-fileinfo

Important things to note:

1. In case you want to downgrade the PHP version for one reason or the other, you will need to remove existing PHP version(s) and then reinstall the new PHP with modules you need.
2. You can as well install multiple versions of PHP on Linux and manually choose which version to use by default.

Afterwards, double check the installed version of PHP on your system.

Sumber: https://www.tecmint.com/install-php-5-6-on-centos-7/