How to upgrade CentOS to the latest version CentOS7.4?
Recently, the latest version of CentOS 7.4 was released. All users of CentOS 7.0, 7.1
and 7.2 can upgrade their systems to the latest version.
This quick guide will explain the steps you need to take to update CentOS or upgrade CentOS to the latest version.
Use the "Update" option to upgrade all CentOS system software to the latest version in just one operation.
Please note that "-y" is not recommended for yum operations. Of course, you have some time to review the packages you want to install on your system before allowing yum to proceed, by using "yum update
".
In earlier versions of CentOS, we needed to restore all programs and data, but now with CentOS 7, we can upgrade directly, that is, unexpected situations are still possible, so before the upgrade process Make a data backup.
Tutorial on upgrading CentOS to the latest version CentOS7.4
1. Check your CentOS version.
# cat /etc/redhat-release CentOS Linux release 7.1.1503 (Core)
2. Back up important data and directories (for example: /etc, /var, /opt
)
I recommend, For VMware virtual machines, take a good VMware snapshot or run a full backup of the operating system and data. (MySQL, Apache, NGINX, DNS, etc.), you can view the tutorial on how to back up data on this site.
3. Use yum to update and upgrade.
# yum clean all # yum update
4. Restart the server using the following command.
# reboot
5. Confirm that your system has been successfully upgraded
# cat /etc/redhat-release CentOS Linux release 7.4.1611 (Core)
I hope this article has provided you with some information on how to update CentOS or upgrade CentOS operating system ideas and basic guidance.
Note: Check your system to make sure it is running properly and verify each service installed before upgrading.
Related recommendations: centOS tutorial
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CentOS needs alternatives because CentOSStream no longer provides long-term support. Alternative options include: 1. RockyLinux, which provides 10 years of life cycle support, suitable for users who need stability. 2.AlmaLinux also provides 10 years of support and has strong community support. 3. OracleLinux, provides RHEL-compatible version, and flexible life cycle management.

The end of CentOS has had a significant impact on users, with users having the option of RHEL, AlmaLinux, Debian or Ubuntu as alternatives. 1. The migration cost is high, requiring time and money. 2. Community division affects open source projects. 3.RHEL provides commercial support, but it is costly. 4.AlmaLinux is similar to CentOS and has low migration costs. 5. Debian and Ubuntu need more time to adapt.

CentOS is suitable as an enterprise-class server operating system because it is stable, secure and free. 1) It is based on RHEL and provides high compatibility with RHEL. 2) Use yum for package management to ensure that the software is easy to install and update. 3) The community regularly releases security patches, with a support cycle of up to 10 years.

The reason why CentOS stopped maintaining is RedHat's strategic change. User response strategies include: 1. Migrating to other distributions, such as UbuntuServer, Debian or RockyLinux; 2. Continue to use CentOS7 until June 2024; 3. Turning to CentOSStream; 4. Build solutions, such as custom distributions based on RHEL or using container technology.

RedHatendedsupportforCentOStoshifttowardsacommerciallyfocusedmodelwithCentOSStream.1)CentOStransitionedtoCentOSStreamforRHELdevelopment.2)ThisencourageduserstomovetoRHEL.3)AlternativeslikeAlmaLinux,RockyLinux,andOracleLinuxemergedasreplacements.

CentOS is an open source operating system based on RedHatEnterpriseLinux, suitable for server environments. 1. Select the appropriate media and options during installation and configure network, firewall and user permissions. 2. Use useradd, usermod and systemctl commands to manage users and services, and update software packages regularly. 3. Basic operations include using yum installation software and systemctl management services, and advanced features such as SELinux to enhance security. 4. Check the system log to solve common errors. Optimizing performance requires monitoring resources and cleaning of unnecessary files.

CentOS is the first choice for server and enterprise environments for its superior security, stability and performance. 1) Security provides forced access control through SELinux to improve system security. 2) Stability is supported by the LTS version for up to 10 years to ensure the stability of the system. 3) Performance significantly improves system response speed and resource utilization by optimizing kernel and system configuration.

CentOS alternatives should have the characteristics of stability, compatibility, community support and package management. 1.AlmaLinux provides 10 years of support, 2. RockyLinux is initiated by the founder of CentOS to ensure compatibility with CentOS. Migration cost and performance optimization should be considered when choosing.


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