Background

CentOS 6 reached end-of-life (EOL) on November 30, 2020, and is no longer maintained by the Linux community. Therefore, the CentOS 6 source is unavailable in http://mirror.centos.org/centos-6/ and third-party image sites. Tencent Cloud sites, http://mirrors.cloud.tencent.com/ and http://mirrors.tencentyun.com/, cannot obtain CentOS 6 source. If you continue to use the default CentOS 6 source configured in Tencent Cloud, an error may occur.

Note：

Upgrading your operating system to CentOS 7 or a later version is recommended. If you still need to use the CentOS 6 dependencies, switch the CentOS 6 source as instructed below.

Directions

1. Log in to a Linux instance using Web Shell (See documentation. You can also use other login methods that you are more comfortable with:
   • Log in to Linux Instances via Remote Login Tools
   • Log in to Linux Instance via SSH Key
2. Run the following command to check the CentOS version of the current operating system.

   cat /etc/centos-release

   As shown in the following figure, the operating system version is CentOS 6.9.
   
3. Run the following command to edit the CentOS-Base.repo file.

   vim /etc/yum.repos.d/CentOS-Base.repo 

4. Press i to enter edit mode and modify baseurl according to the CentOS version and network environment.

   Note：

   
   Determine the source required for your instance as instructed in Private Network Access and Internet Access

   • Source for private network access: http://mirrors.tencentyun.com/centos-vault/6.x/
   • Source for public network access: https://mirrors.cloud.tencent.com/centos-vault/6.x/

This document uses a CentOS 6.9-based instance that requires private network access as an example. The modified CentOS-Base.repo file is as follows:

5. Press ESC, enter :wq, and press Enter to save the modification.
6. Run the following command to modify the CentOS-Epel.repo file.

vim /etc/yum.repos.d/CentOS-Epel.repo 

7. Press i to enter edit mode and modify baseurl based on the network environment.
   In this example, change baseurl=http://mirrors.tencentyun.com/epel/$releasever/$basearch/ to baseurl=http://mirrors.tencentyun.com/epel-archive/6/$basearch/. The result should be as follows:
   
8. Press ESC, enter :wq, and press Enter to save the modification.
9. Now you can use the yum install command to install the required software.