Centos 6 Manual
Instructions for installing CentOS 7.6.1810 on various architectures 🔗 Release Notes. Release Notes for every version of CentOS, up to and including 7.6.1810. All CentOS Documentation content available under CC-BY-SA 3.0. This page was built using a modified version of the Antora default UI. What is CentOS? CentOS (abbreviated from Community Enterprise Operating System) is a Linux distribution that attempts to provide a free, enterprise-class, community-supported computing platform which aims to be functionally compatible with its upstream source, Red Hat Enterprise Linux (RHEL).
CentOS is a most popular and widely used Linux distribution from the RedHat Enterprise family. This CentOS 6.10 release is based on the upstream release Red Hat Enterprise Linux 6.10 comes with bug fixes, new functionalities & updates.
It is strongly recommended to read the release notes as well as the upstream technical notes about the changes before an installation or up-gradation.
Upgrade CentOS 6.x to CentOS 6.10
Those who looking to upgrade from previous CentOS 6.x to a new major CentOS 6.10 version, they can simply run the following yum command to upgrade their system seamlessly from any earlier CentOS Linux 6.x release to 6.10.
We highly suggest you to perform a fresh CentOS 6.10 installation rather than upgrading from other older CentOS versions.
In this article, we will take you through the steps of performing a minimal CentOS 6.10 network installation, where you install a very minimum set of software, necessary for booting the kernel and performing basic functions on your server, without a graphical user interface (GUI). It allows you to set a foundation for building a future customizable server platform.
Download CentOS 6.10 Net Install
If you’re looking for fresh CentOS 6.10 installation, then download the .iso images from the links provided below and follow the installation instructions with screenshots mentioned below.
- CentOS-6.10-i386-netinstall.iso [32-bit]
- CentOS-6.10-x86_64-netinstall.iso [64-bit]
CentOS 6.10 Network Installation Guide
1. First start by downloading the CentOS 6.10 Network Install ISO and then create a bootable USB stick using LiveUSB Creator called Rufus, Unetbootin or terminal based Bootiso.
2. Next boot your system using the bootable USB or CD, at the Grub menu, select Install or upgrade existing system and hit enter.
3. Next, skip testing of the installation media to start the installation of the system.
CentOS 6.10 Media Testing
4. Choose the language you would like to use for the installation process, and press Enter.
5. Select the keyboard layout you would like to use, and use the right arrow key select OK, and press Enter.
CentOS 6.10 Keyboard Layout
6. Now specify the installation method, since it is a network installation, choose URL and then press OK and hit Enter.
7. Next, configure TCP/IP for connections as shown in the screenshot below.
CentOS 6.10 TCP/IP Configuration
8. Now configure the CentOS 6.10 Netinstall URL, it is recommended to choose a nearest mirror from the available CentOS mirrors list.
Example mirror.liquidtelecom.com
- http://mirror.liquidtelecom.com/centos/6.10/os/i386/ – [32-bit]
- http://mirror.liquidtelecom.com/centos/6.10/os/x86_64/ – [64-bit]
9. After providing the URL and clicking OK, wait for the installer to retrieve the ISO image (this may take sometime, but it should be fast with a good internet connection).
CentOS 6.10 Image Retrieving
10. After successfully retrieving the ISO image, the CentOS Graphical Installer will be launched, as shown in the following screenshot. Click on Next to proceed.
11. Next, choose the type storage devices (basic or specialized) to be used for the installation and click Next.
CentOS 6.10 Installation Storage Device
12. Next, select the option to clear data on the storage disk by selecting Yes, discard any data and click Next.
13. Set the Hostname and click Next.
Set CentOS 6.10 Hostname Jfk reloaded 3.0 download.
14. Set the Timezone for your location and click Next to proceed.
15. Set the root user password and click Next to continue.
Set CentOS 6.10 Root Password
16. Now you need to specify the type of installation you want. Read the descriptions of the options carefully and select the appropriate one. If you want to use the whole disk space, choose Use All Space, but to perform a custom installation, choose Create Custom Layout.
17. The installer will review and modify partition layout. If everything is ok, clik Next.
CentOS 6.10 Device Partition Summary
18. Next, apply the disk partitioning scheme created by selecting Write changes to disk and then click Next to proceed.
CentOS 6.10 Disk Write Changes
19. In this step, you need to choose the default set of software to be installed on your system. For the purpose of this guide, we will use Minimal and click Next. Thereafter, the installation process will be started.
20. At this point, the actual installation of the system (copying of files) to disk will now start. When it is done, click on Reboot.
CentOS 6.10 Installation Process
21. Once you have rebooted the system, you will land at login page as shown in the screenshot below. Finally, log into your CentOS 6.10 server with the root credentials.
CentOS 6.10 Root Login
Congratulations! You have successfully installed CentOS 6.10 server using network installation media. If you have any questions or thoughts to share, use the feedback from below to reach us.
I have CentOS machine and each time I've noticed that the server loses correct time after a while. It is usually behind by several minutes after time passes from having manually set the correct time. Is there a mechanism whereby I can update the server with the time from a specific time server?
Tom O'Connor9 Answers
Use the ntp daemon. Run yum install ntp and ensure that the service is started via ntsysv or chkconfig ntpd on.
To get an immediate sync, run ntpdate time.apple.com (or something similar).
You need to install and configure ntp.
Centos 6 Manual Update
should get things set up and running. You may find that the ntp package is already installed and just needs configuring.
Yes.
Do an initial sync, with
Centos 6 Manual Pdf
and start the time daemon with:
Tom O'ConnorTom O'ConnorYou'll need to configure ntpd for the server. I suspect it is already installed but needs to be configured. Note: if it is a virtual server, you probably have the option of syncing with the virtual host.
ntpd.
Ntpd does exactly what you're looking for - synchronizes your system clock with one or more known-good time servers.
EEAAEEAABasically there are two ways. NTP daemon and the ntpdate command. The most important difference is that ntpdate will synchronize the time at once even though it means that the system time will change. On the other hand NTP daemon will take care of the time synchronization and it will adjust the time by small steps - you can think about it like slowing down/speeding up the time of the computer to synchronize it to the correct time. Thats why people suggest to do the initial synchronization by ntpdate and then leave it to ntp daemon.
Radek HladÃkRadek HladÃkCentos 6 Eol
For centos 7.x installation:
initial sync, with:
start the daemon with:
Yea I'd use NTP, install ntp with yum and turn it on.
Then sync it to any ntp server of your liking with the ntpdate command
Also if using CPanel like I was and had this issue. I think using rdate. Changing to ntpd as per above fixes all issues with email, especially dovecot,etc.