CentOS community has released its major release of CentOS 6.5 on 1st December 2013, Since from the day of release every one is looking for upgrading the current version to latest CentOS release. This how to is mainly focusing on upgrading previous release of CentOS 6.x to the latest. Before going to update, lets look into the main features in the latest version.
Major Changes:
- The Precision Time Protocol is now fully supported.
- OpenSSL now supports TLS 1.1 and 1.2
- KVM supports VMDK and VHDX file in read only mode, CPU hot plugging added in KVM.
- LibreOffice and Evolution updated to latest version.
- Hyper-V and VMware drivers are updated.
Check the current version of your release.
[root@server ~]# cat /etc/redhat-release
CentOS release 6.4 (Final)
Now lets look what are the updates available for your system.
[root@server ~]# yum check-update
The following are the list of available updates for my machine.
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: centos.aol.in
* extras: centos.aol.in
* updates: centos.aol.in
atk.i686 1.30.0-1.el6 base
bash.i686 4.1.2-15.el6_4 base
ca-certificates.noarch 2013.1.95-65.1.el6_5 updates
centos-release.i686 6-5.el6.centos.11.2 updates
chkconfig.i686 1.3.49.3-2.el6_4.1 base
coreutils.i686 8.4-31.el6 base
coreutils-libs.i686 8.4-31.el6 base
createrepo.noarch 0.9.9-18.el6 base
cronie.i686 1.4.4-12.el6 base
cronie-anacron.i686 1.4.4-12.el6 base
curl.i686 7.19.7-37.el6_4 base
cvs.i686 1.11.23-16.el6 base
db4.i686 4.7.25-18.el6_4 base
db4-utils.i686 4.7.25-18.el6_4 base
dbus-glib.i686 0.86-6.el6 base
device-mapper.i686 1.02.79-8.el6 base
device-mapper-event.i686 1.02.79-8.el6 base
If you are satisfied with the updates, lets issue the following command to install the same.
[root@server ~]# yum update
You will get the following information with download size, you need to confirm the installation by pressing Y and Enter.
tzdata noarch 2013i-1.el6 updates 447 k
tzdata-java noarch 2013i-1.el6 updates 147 k
udev i686 147-2.51.el6 base 356 k
upstart i686 0.6.5-12.el6_4.1 base 167 k
util-linux-ng i686 2.17.2-12.14.el6 base 1.5 M
yum noarch 3.2.29-43.el6.centos updates 996 k
Installing for dependencies:
db4-cxx i686 4.7.25-18.el6_4 base 605 k
db4-devel i686 4.7.25-18.el6_4 base 6.6 M
gdbm-devel i686 1.8.0-36.el6 base 25 k
glibc-devel i686 2.12-1.132.el6 base 978 k
glibc-headers i686 2.12-1.132.el6 base 616 k
kernel-headers i686 2.6.32-431.3.1.el6 updates 2.8 M
p11-kit i686 0.18.5-2.el6 base 93 k
p11-kit-trust i686 0.18.5-2.el6 base 68 k
shared-mime-info i686 0.70-4.el6 base 208 k
Transaction Summary
===============================================================================
Install 10 Package(s)
Upgrade 148 Package(s)
Total download size: 222 M
Is this ok [y/N]: y
Downloading Packages:
(1/158): atk-1.30.0-1.el6.i686.rpm | 194 kB 00:00
(2/158): bash-4.1.2-15.el6_4.i686.rpm | 886 kB 00:00
(3/158): ca-certificates-2013.1.95-65.1.el6_5.noarch.rp | 1.1 MB 00:00
(4/158): centos-release-6-5.el6.centos.11.2.i686.rpm | 20 kB 00:00
(5/158): chkconfig-1.3.49.3-2.el6_4.1.i686.rpm | 158 kB 00:00
Once downloaded, it will automatically start installing it.
(157/158): yum-plugin-fastestmirror-1.1.30-14.el6.noarch | 28 kB 00:00
(158/158): zlib-1.2.3-29.el6.x86_64.rpm | 73 kB 00:01
--------------------------------------------------------------------------------
Total 31 kB/s | 131 MB 71:32
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Updating : libgcc-4.4.7-4.el6.x86_64 1/259
Updating : 12:dhcp-common-4.1.1-38.P1.el6.centos.x86_64 2/259
Updating : tzdata-2013i-1.el6.noarch 3/259
Updating : nss-softokn-freebl-3.14.3-9.el6.x86_64 4/259
Updating : bash-4.1.2-15.el6_4.x86_64 5/259
Updating : glibc-2.12-1.132.el6.x86_6 [############### ] 6/259
Once completed, reboot the machine
[root@client ~]# reboot
You can verify the CentOS version.
[root@client ~]# cat /etc/redhat-release
CentOS release 6.5 (Final)
That’s All!, now you have the latest version of CentOS.
