How to upgrade CentOS 7 to CentOS 7.5?

Hello folks,

There is good news for you. Have you heard CentOS has released its latest version, i.e., 7.5? Yes, you heard it correct, the new version is available on the net now. So, if you are an existing Linux user and you have a plan to upgrade your CentOS this would be a dashing deal for you. This post focuses on how to upgrade to the CentOS latest version 7.5. Also, walk you through the new features, discontinued features, considerations and the drawbacks (If any). And it’ll help you to decide why should you update the current CentOS to CentOS 7.5( click here for more information). Let’s see the prominent factors that you need to check before a headlong.

Major Features:

1. CentOS can report bugs directly to bugs.centos.org via Automatic Bug Reporting Tool(ABRT). 2. OpenSSL is compiled with OpenSSL instead of NAME Service Switch (NSS). 3. Supports HA(High Availability) clusters of VMs(Virtual Machines) on Medha Hosting, AWS, Microsoft Azure.

Prerequisites:

1. Root access to the server 2. Working internet connection to the server for download packages.

Can Renaming Files and Directories in CentOS Affect the Upgrade Process to CentOS 7.5?

In CentOS, it’s important to be cautious when you rename files and directories, as it can potentially impact the upgrade process to CentOS 7.5. When you rename files directories centos, it can lead to errors or system instability during the upgrade, so it’s advisable to avoid renaming critical system files and directories.

Consideration:

Debuginfo packages are also being signed and pushed. Yum configs shipped in the new release file will have all the context required for debuginfo to be available on every CentOS Linux install.Let’s check how to upgrade CentOS 7.5Click here for more info about server administrationBefore upgrading to CentOS 7.5, let’s check the current OS version.cat /etc/centos-releaseI have received the following output.CentOS Linux release 7.0.1406 (Core)For the latest release, let us check the available updates.yum check-updateThe output would be like:Loaded plugins: fastestmirror base | 3.6 kB 00:00 extras | 3.4 kB 00:00 updates | 3.4 kB 00:00 Loading mirror speeds from cached hostfile * base: packages.oit.ncsu.edu * extras: packages.oit.ncsu.edu * updates: packages.oit.ncsu.eduacl.x86_64 2.2.51-14.el7 base acpid.x86_64 2.0.19-9.el7 base at.x86_64 3.1.13-23.el7 base attr.x86_64 2.4.46-13.el7 base audit.x86_64 2.8.1-3.el7_5.1 updates audit-libs.x86_64 2.8.1-3.el7_5.1 updates authconfig.x86_64 6.2.8-30.el7 base avahi.x86_64 0.6.31-19.el7 base avahi-glib.x86_64 0.6.31-19.el7 base avahi-libs.x86_64 0.6.31-19.el7 base bash.x86_64 4.2.46-30.el7 base bind-libs-lite.x86_64 32:9.9.4-61.el7_5.1 updates bind-license.noarch 32:9.9.4-61.el7_5.1 updates binutils.x86_64 2.27-28.base.el7_5.1 updates bzip2.x86_64 1.0.6-13.el7 base bzip2-libs.x86_64 1.0.6-13.el7 base ca-certificates.noarch 2018.2.22-70.0.el7_5 updates cairo.x86_64 1.14.8-2.el7 base centos-logos.noarch 70.0.6-3.el7.centos base checkpolicy.x86_64 2.5-6.el7 base chkconfig.x86_64 1.7.4-1.el7 base coreutils.x86_64 8.22-21.el7 base cpio.x86_64 2.11-27.el7 base cronie.x86_64 1.4.11-19.el7 base cronie-anacron.x86_64 1.4.11-19.el7 base cryptsetup-libs.x86_64 1.7.4-4.el7 base cups.x86_64 1:1.6.3-35.el7 base cups-filesystem.noarch 1:1.6.3-35.el7 base cups-filters.x86_64 1.0.35-22.el7 base cups-filters-libs.x86_64 1.0.35-22.el7 base cups-libs.x86_64 1:1.6.3-35.el7 base curl.x86_64 7.29.0-46.el7 base cyrus-sasl-lib.x86_64 2.1.26-23.el7 base dbus.x86_64 1:1.10.24-7.el7 base dbus-libs.x86_64 1:1.10.24-7.el7 base device-mapper.x86_64 7:1.02.146-4.el7 base device-mapper-libs.x86_64 7:1.02.146-4.el7 base dhclient.x86_64 12:4.2.5-68.el7.centos.1 updates dhcp-common.x86_64 12:4.2.5-68.el7.centos.1 updates dhcp-libs.x86_64 12:4.2.5-68.el7.centos.1 updates e2fsprogs.x86_64 1.42.9-12.el7_5 updates e2fsprogs-libs.x86_64 1.42.9-12.el7_5 updates elfutils.x86_64 0.170-4.el7 base elfutils-libelf.x86_64 0.170-4.el7 base elfutils-libs.x86_64 0.170-4.el7 base expat.x86_64 2.1.0-10.el7_3 base file.x86_64 5.11-33.el7 base file-libs.x86_64 5.11-33.el7 base filesystem.x86_64 3.2-25.el7 base findutils.x86_64 1:4.5.11-5.el7 base fipscheck.x86_64 1.4.1-6.el7 base fipscheck-lib.x86_64 1.4.1-6.el7 base fontconfig.x86_64 2.10.95-11.el7 base freetype.x86_64 2.4.11-15.el7 base gawk.x86_64 4.0.2-4.el7_3.1 base gettext.x86_64 0.19.8.1-2.el7 base gettext-libs.x86_64 0.19.8.1-2.el7 base ghostscript.x86_64 9.07-29.el7_5.2 updates ghostscript-cups.x86_64 9.07-29.el7_5.2 updates glibc.x86_64 2.17-222.el7 base glibc-common.x86_64 2.17-222.el7 base gmp.x86_64 1:6.0.0-15.el7 base gnupg2.x86_64 2.0.22-5.el7_5 updates grep.x86_64 2.20-3.el7 base grub2.x86_64 1:2.02-0.65.el7.centos.2 base grub2-tools.x86_64 1:2.02-0.65.el7.centos.2 base grubby.x86_64 8.28-23.el7 base gzip.x86_64 1.5-10.el7 base hwdata.x86_64 0.252-8.8.el7 base info.x86_64 5.1-5.el7 base iproute.x86_64 4.11.0-14.el7 base iptables.x86_64 1.4.21-24.1.el7_5 updates iptables-services.x86_64 1.4.21-24.1.el7_5 updates iputils.x86_64 20160308-10.el7 base kbd.x86_64 1.15.5-13.el7 base kbd-misc.noarch 1.15.5-13.el7 base kernel.x86_64 3.10.0-862.14.4.el7 updates kmod-libs.x86_64 20-21.el7 base kpartx.x86_64 0.4.9-119.el7_5.1 updates krb5-libs.x86_64 1.15.1-19.el7 updates lcms2.x86_64 2.6-3.el7 base less.x86_64 458-9.el7 base libICE.x86_64 1.0.9-9.el7 base libSM.x86_64 1.2.2-2.el7 base libX11.x86_64 1.6.5-1.el7 base libX11-common.noarch 1.6.5-1.el7 base libXext.x86_64 1.3.3-3.el7 base libXfixes.x86_64 5.0.3-1.el7 base libXfont.x86_64 1.5.2-1.el7 base libXrender.x86_64 0.9.10-1.el7 base libXt.x86_64 1.1.5-3.el7 base libXxf86vm.x86_64 1.1.4-1.el7 base libacl.x86_64 2.2.51-14.el7 base libattr.x86_64 2.4.46-13.el7 base libblkid.x86_64 2.23.2-52.el7_5.1 updates libcap.x86_64 2.22-9.el7 base libcap-ng.x86_64 0.7.5-4.el7 base libcom_err.x86_64 1.42.9-12.el7_5 updates libcroco.x86_64 0.6.11-1.el7 base libcurl.x86_64 7.29.0-46.el7 base libdb.x86_64 5.3.21-24.el7 base libdb-utils.x86_64 5.3.21-24.el7 base libdrm.x86_64 2.4.83-2.el7 base liberation-fonts-common.noarch 1:1.07.2-16.el7 base liberation-mono-fonts.noarch 1:1.07.2-16.el7 base libffi.x86_64 3.0.13-18.el7 base libfontenc.x86_64 1.1.3-3.el7 base libgcc.x86_64 4.8.5-28.el7_5.1 updates libgcrypt.x86_64 1.5.3-14.el7 base libgomp.x86_64 4.8.5-28.el7_5.1 updates libicu.x86_64 50.1.2-15.el7 base libidn.x86_64 1.28-4.el7 base libmount.x86_64 2.23.2-52.el7_5.1 updates libnetfilter_conntrack.x86_64 1.0.6-1.el7_3 base libpciaccess.x86_64 0.14-1.el7 base libpng.x86_64 2:1.5.13-7.el7_2 base libpwquality.x86_64 1.2.3-5.el7 base libss.x86_64 1.42.9-12.el7_5 updates libssh2.x86_64 1.4.3-10.el7_2.1 base libstdc++.x86_64 4.8.5-28.el7_5.1 updates libtasn1.x86_64 4.10-1.el7 base libtiff.x86_64 4.0.3-27.el7_3 base libusbx.x86_64 1.0.21-1.el7 base libuser.x86_64 0.60-9.el7 base libuuid.x86_64 2.23.2-52.el7_5.1 updates libxcb.x86_64 1.12-1.el7 base libxml2.x86_64 2.9.1-6.el7_2.3 base linux-firmware.noarch 20180220-62.2.git6d51311.el7_5 updates logrotate.x86_64 3.8.6-15.el7 base lsof.x86_64 4.87-5.el7 base lua.x86_64 5.1.4-15.el7 base m4.x86_64 1.4.16-10.el7 base mailx.x86_64 12.5-19.el7 base make.x86_64 1:3.82-23.el7 base mariadb-libs.x86_64 1:5.5.60-1.el7_5 updates mesa-libEGL.x86_64 17.2.3-8.20171019.el7 base mesa-libGL.x86_64 17.2.3-8.20171019.el7 base mesa-libgbm.x86_64 17.2.3-8.20171019.el7 base mesa-libglapi.x86_64 17.2.3-8.20171019.el7 base mlocate.x86_64 0.26-8.el7 base ncurses.x86_64 5.9-14.20130511.el7_4 base ncurses-base.noarch 5.9-14.20130511.el7_4 base ncurses-libs.x86_64 5.9-14.20130511.el7_4 base net-tools.x86_64 2.0-0.22.20131004git.el7 base nspr.x86_64 4.19.0-1.el7_5 updates nss.x86_64 3.36.0-7.el7_5 updates nss-softokn.x86_64 3.36.0-5.el7_5 updates nss-softokn-freebl.x86_64 3.36.0-5.el7_5 updates nss-sysinit.x86_64 3.36.0-7.el7_5 updates nss-tools.x86_64 3.36.0-7.el7_5 updates nss-util.x86_64 3.36.0-1.el7_5 updates ntpdate.x86_64 4.2.6p5-28.el7.centos base open-vm-tools.x86_64 10.1.10-3.el7_5.1 updates openjpeg-libs.x86_64 1.5.1-17.el7 base openldap.x86_64 2.4.44-15.el7_5 updates openssh.x86_64 7.4p1-16.el7 base openssh-clients.x86_64 7.4p1-16.el7 base openssh-server.x86_64 7.4p1-16.el7 base os-prober.x86_64 1.58-9.el7 base p11-kit.x86_64 0.23.5-3.el7 base p11-kit-trust.x86_64 0.23.5-3.el7 base pam.x86_64 1.1.8-22.el7 base pam_pkcs11.x86_64 0.6.2-28.el7 base patch.x86_64 2.7.1-10.el7_5 updates pcre.x86_64 8.32-17.el7 base pcsc-lite-libs.x86_64 1.8.8-7.el7 base pinentry.x86_64 0.8.1-17.el7 base pixman.x86_64 0.34.0-1.el7 base poppler.x86_64 0.26.5-17.el7_4 base poppler-utils.x86_64 0.26.5-17.el7_4 base procps-ng.x86_64 3.3.10-17.el7_5.2 updates psmisc.x86_64 22.20-15.el7 base pth.x86_64 2.0.7-23.el7 base python.x86_64 2.7.5-69.el7_5 updates python-chardet.noarch 2.2.1-1.el7_1 base python-libs.x86_64 2.7.5-69.el7_5 updates python-pycurl.x86_64 7.19.0-19.el7 base python-urlgrabber.noarch 3.10-8.el7 base readline.x86_64 6.2-10.el7 base redhat-lsb-core.x86_64 4.1-27.el7.centos.1 base redhat-lsb-submod-security.x86_64 4.1-27.el7.centos.1 base rpm.x86_64 4.11.3-32.el7 base rpm-build-libs.x86_64 4.11.3-32.el7 base rpm-libs.x86_64 4.11.3-32.el7 base rpm-python.x86_64 4.11.3-32.el7 base rsync.x86_64 3.1.2-4.el7 base rsyslog.x86_64 8.24.0-16.el7_5.4 updates setup.noarch 2.8.71-9.el7 base shadow-utils.x86_64 2:4.1.5.1-24.el7 base shared-mime-info.x86_64 1.8-4.el7 base spax.x86_64 1.5.2-13.el7 base sqlite.x86_64 3.7.17-8.el7 base stunnel.x86_64 4.56-6.el7 base sudo.x86_64 1.8.19p2-14.el7_5 updates tar.x86_64 2:1.26-34.el7 base traceroute.x86_64 3:2.0.22-2.el7 base tzdata.noarch 2018f-2.el7 updates unzip.x86_64 6.0-19.el7 base util-linux.x86_64 2.23.2-52.el7_5.1 updates vim-minimal.x86_64 2:7.4.160-4.el7 base wget.x86_64 1.14-15.el7_4.1 base xinetd.x86_64 2:2.3.15-13.el7 base xorg-x11-font-utils.x86_64 1:7.5-20.el7 base xz.x86_64 5.2.2-1.el7 base xz-libs.x86_64 5.2.2-1.el7 base yum.noarch 3.4.3-158.el7.centos base yum-plugin-fastestmirror.noarch 1.1.31-46.el7_5 updates yum-utils.noarch 1.1.31-46.el7_5 updates zlib.x86_64 1.2.7-17.el7 base Obsoleting Packages grub2.x86_64 1:2.02-0.65.el7.centos.2 base grub2.x86_64 1:2.02-0.2.10.el7.centos.1 @base grub2-tools.x86_64 1:2.02-0.65.el7.centos.2 base grub2-tools.x86_64 1:2.02-0.2.10.el7.centos.1 @base grub2-tools-extra.x86_64 1:2.02-0.65.el7.centos.2 base grub2-tools.x86_64 1:2.02-0.2.10.el7.centos.1 @base grub2-tools-minimal.x86_64 1:2.02-0.65.el7.centos.2 base grub2-tools.x86_64 1:2.02-0.2.10.el7.centos.1 @baseNow let us upgrade the OS version to the latest one applying the following command.yum updateoryum upgradeThe above command displays the full package details like version, size of the package, etc.Here you need to press ‘Y’ and ‘Enter’ key to initiate the up-gradation.Once the packages are downloaded, the installer will install it automatically.Once everything is done, you will see the ‘Complete!’ message. Now you need to reboot the server to take effect. rebootNow, check the CentOS version.cat /etc/centos-releaseThe output looks like this ( If it’s installed correctly)CentOS Linux release 7.5.1804 (Core)We did it! ????Here you go! Now you know how to update your current CentOS version to CentOS 7.5.As you’ve seen CentOS 7.5 have a handful of stuff to take into our serious consideration. The features like Automatic Bug Reporting Tool, OpenSSL, all-inclusive debug info packages are making it a cut above to run our Linux system operations.Hope got all you want to upgrade CentOS 7 to CentOS 7.5- try it out and reach us if you have any queries @ Medhahosting