CentOS 7 EOL Repository Fix

CentOS 7 has reached its End of Life (EOL), which means its repositories may no longer be maintained and accessible. However, you can still use some workarounds to keep your CentOS 7 system functional by pointing to alternative or archived repositories.

Method 1: Automatically Replace the Repository File

Step 1: Backup Existing Repo Files

1. Backup Existing Repo Files:

   sudo cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak

Step 2: Download the Updated Repository File

2. Download the Updated Repository File:

   sudo wget -O /etc/yum.repos.d/CentOS-Base.repo https://raw.githubusercontent.com/AtlasGondal/centos7-eol-repo-fix/main/CentOS-Base.repo

Step 3: Clean YUM Cache

3. Clean YUM Cache:

   Clear the YUM cache to ensure it fetches the latest repository metadata:

   sudo yum clean all
   sudo yum makecache

Step 4: Update Your System

4. Update Your System:

   Now try updating your system:

   sudo yum update

Method 2: Manually Edit the Repository File

Step 1: Backup Existing Repo Files

1. Backup Existing Repo Files:

   sudo cp /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak

Step 2: Edit the Repository File

2. Edit the Repository File:

   Open the repository file with a text editor:

   sudo nano /etc/yum.repos.d/CentOS-Base.repo

Step 3: Update the baseurl

3. Update the baseurl:

   Replace the baseurl entries with the following vault URLs:

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

   Save the file and exit the editor.

Step 4: Clean YUM Cache

4. Clean YUM Cache:

   Clear the YUM cache to ensure it fetches the latest repository metadata:

   sudo yum clean all
   sudo yum makecache

Step 5: Update Your System

5. Update Your System:

   Now try updating your system:

   sudo yum update

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