CentOS Linux 7.7 released and here is how to update it.

 

About CentOS Linux 7.7 released.

We are pleased to announce the general availability of CentOS Linux 7 (1908) for the x86_64 architecture. Effectively immediately, this is the current release for CentOS Linux 7 and is tagged as 1908, derived from Red Hat Enterprise Linux 7.7 Source Code. Updates released since the upstream release are all posted, across all architectures. We strongly recommend every user apply all updates, including the content released today, on your existing CentOS Linux 7 machine. Many packages have received important updates. Please see the upstream document for details.

Major changes in CentOS 7.7:

  • Python 3 is now available. Installing the python3 package gives you the Python 3.6 interpreter.
  • bind version 9.11
  • chrony version 3.4
  • Since release 1503 (abrt>= 2.1.11-19.el7.centos.0.1) CentOS-7 can report bugs directly to bugs.centos.org.
  • Linux kernel version 3.10.0-1062.1.1.el7.x86_64

    How to update to CentOS 7.6 from 7.7

    First, note down the Linux kernel version, run:

    uname -mrs

    Check CentOS Linux version in Linux command line, run:

    lsb_release -a

    OR
    hostnamectl Find CentOS Linux version

    Upgrading CentOS 7.6 to 7.7

    Make sure you back up all your data, database, and configuration file before attempting upgrade procedure on CentOS Linux 7.6. You can see a list of the updates on screen, type:

     sudo yum check-update

     

    Sample outputs:

    Loaded plugins: copr
     
    GeoIP.x86_64                              1.5.0-14.el7                   base   
    NetworkManager.x86_64                     1:1.18.0-5.el7_7.1             updates
    NetworkManager-libnm.x86_64               1:1.18.0-5.el7_7.1             updates
    NetworkManager-ppp.x86_64                 1:1.18.0-5.el7_7.1             updates
    NetworkManager-team.x86_64                1:1.18.0-5.el7_7.1             updates
    NetworkManager-tui.x86_64                 1:1.18.0-5.el7_7.1             updates
    NetworkManager-wifi.x86_64                1:1.18.0-5.el7_7.1             updates
    alsa-lib.x86_64                           1.1.8-1.el7                    base   
    apr.x86_64                                1.4.8-5.el7                    base   
    audit.x86_64                              2.8.5-4.el7                    base   
    ...
    ..
    ...
    yum-cron.noarch                           3.4.3-163.el7.centos           base   
    yum-plugin-copr.noarch                    1.1.31-52.el7                  base   
    yum-plugin-fastestmirror.noarch           1.1.31-52.el7                  base   
    yum-utils.noarch                          1.1.31-52.el7                  base   
    Obsoleting Packages
    python3.x86_64                            3.6.8-10.el7                   base   
        python36.x86_64                       3.6.8-1.el7                    @epel  
    python3-libs.x86_64                       3.6.8-10.el7                   base   
        python36-libs.x86_64                  3.6.8-1.el7                    @epel  
    python3-setuptools.noarch                 39.2.0-10.el7                  base   
        python36-setuptools.noarch            39.2.0-3.el7                   @epel

    Next, simply run the following yum command

     sudo yum update  

     

  • CentOS Linux 7.7 released and how to upgrade it using yum

    Reboot the CentOS 7.6 Linux machine

    Simply run any one of the following command:

     sudo shutdown -r now

     

    OR

    sudo reboot

    Verify upgrades from 7.6 to 7.7

    Run the following commands to see version numbers:

    uname -mrs
    lsb_release -a


    Make sure all services are running on CentOS Linux box:

    ps aux
    netstat -tulpn | grep LISTEN
    top
    htop

    Verify CentOS Linux 7.6 to 7.7 upgrade

    Check out for errors in log file using the cat command/grep command/egrep command and other tools:

     tail -f /var/log/messages
    grep error /path/to/nginx.conf
    egrep -i 'err|warn|cri' /var/log/messages

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