CentOS/RHEL 6 EOL: Switch to the Vault Repos & Fix yum TLS/Cert Errors

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CentOS/RHEL 6 EOL: Switch to the Vault & Fix yum TLS/Cert Problems

CentOS/RHEL 6 mirrors are gone. To keep legacy hosts updating, point yum to the CentOS Vault and refresh certificates. Below is a minimal, repeatable setup.

1) Disable the old mirrorlist repos

sed -ri 's/^enabled=1/enabled=0/' /etc/yum.repos.d/CentOS-Base.repo || true

2) Create a lean Vault repo file

Enable only the 6.10 vault repos (fast/stable) and set metadata to never expire:

cat >/etc/yum.repos.d/CentOS-Vault.repo <<'EOF'
[C6.10-base]
name=CentOS-6.10 - Base
baseurl=http://vault.epel.cloud/6.10/os/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
enabled=1
metadata_expire=never

[C6.10-updates]
name=CentOS-6.10 - Updates
baseurl=http://vault.epel.cloud/6.10/updates/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
enabled=1
metadata_expire=never

[C6.10-extras]
name=CentOS-6.10 - Extras
baseurl=http://vault.epel.cloud/6.10/extras/$basearch/
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
enabled=1
metadata_expire=never
EOF

(You can substitute http://vault.centos.org/6.10/... if that endpoint is faster for you.)

3) Refresh CA certificates & TLS (common cert errors)

yum clean all
yum install -y ca-certificates openssl nss curl
update-ca-trust force-enable || true
rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
yum makecache

4) (Optional) EPEL archive

If you need EPEL-era packages compatible with EL6, add the archived EPEL:

cat >/etc/yum.repos.d/epel-archive.repo <<'EOF'
[epel-archive]
name=EPEL archive for EL6
baseurl=https://archives.fedoraproject.org/pub/archive/epel/6/$basearch/
enabled=0
gpgcheck=0
EOF

# use it ad-hoc:
yum --enablerepo=epel-archive install <pkg>

5) Verify

yum repolist
yum check-update

👉 Once your system updates are working, follow the next guide: Headless NVIDIA on CentOS/RHEL 6: VirtualGL + TurboVNC setup.

Location: Houston, TX, USA

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