YUMREPO ERROR: ALL MIRROR URLS ARE NOT USING FTP, HTTP[S] OR FILE

When trying update CentOS with yum update command getting error:

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Loaded plugins: fastestmirror, refresh-packagekit, security
Setting up Update Process
Determining fastest mirrors
YumRepo Error: All mirror URLs are not using ftp, http[s] or file.
Eg. Invalid release/repo/arch combination/
removing mirrorlist with no valid mirrors: /var/cache/yum/x86_64/6/base/mirrorlist.txt
Error: Cannot find a valid baseurl for repo: base

Cause

My server is CentOS 6. But now CentOS 6 reached end of life on the 30th November 2020. YUM attempting connect to deprecated repositories. So, we need update deprecated repositories URL’s and point to the vault.

Fix Problem

To fix this problem, we should edit /etc/yum.repos.d/CentOS-Base.repo

  1. Go to /etc/yum.repos.d/ directory:
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# cd /etc/yum.repos.d/

For security, before edit this file, you should make a copy of the original file:

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# cp CentOS-Base.repo CentOS-Base.repo.old
  1. Edit CentOS-Base.repo:
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# vim CentOS-Base.repo
  1. Edit thw three sections:
  • [base]
  • [updates]
  • [extras]

With following:

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[base]
name=CentOS-$releasever - Base
# mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os&infra=$infra
# baseurl=http://mirror.centos.org/centos/$releasever/os/$basearch/
baseurl=https://vault.centos.org/6.10/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6

# released updates
[updates]
name=CentOS-$releasever - Updates
# mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates&infra=$infra
# baseurl=http://mirror.centos.org/centos/$releasever/updates/$basearch/
baseurl=https://vault.centos.org/6.10/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6

# additional packages that may be useful
[extras]
name=CentOS-$releasever - Extras
# mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras&infra=$infra
# baseurl=http://mirror.centos.org/centos/$releasever/extras/$basearch/
baseurl=https://vault.centos.org/6.10/extras/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
  1. Clean Yum cache:
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# yum clean all
  1. Run again yum update command:
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# yum update

Now you can successfully update your CentOS 6: