This post will show how you can update CentOS 6.4 system with ‘
yum‘
command. You should update the linux to newer release or latest linux
kernal because you will get security fixes, stability improvements,
updated device drivers, get new kernel functions and to increased speed
of the linux operating system. After get all above benefits, it’s very
worthwhile to update your kernel for Linux often as soon as new update
released. Now let’s take a look at the most common linux command that we
can use for updating linux system. This steps has been tested on CentOS
6.4.
1 Get ‘yum-plugin-fastestmirror’ plugin installed. This plugin will looks for fast server to download packages :
[root@centos64 ~]# yum install yum-plugin-fastestmirror -y
2. Check current version and current kernel version :
[root@centos64 ~]# cat /etc/redhat-release
CentOS release 6.4 (Final)
[root@centos64 ~]# uname -a
Linux centos64.ehowstuff.local 2.6.32-358.el6.x86_64 #1 SMP Fri Feb 22 00:31:26 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
3. Perform system update by ‘yum update’ command :
[root@centos64 ~]# yum update -y
Example :
[root@centos64 ~]# yum update -y
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: centos.ipserverone.com
* extras: centos.ipserverone.com
* updates: centos.ipserverone.com
Setting up Update Process
Resolving Dependencies
--> Running transaction check
---> Package dbus-glib.x86_64 0:0.86-5.el6 will be updated
---> Package dbus-glib.x86_64 0:0.86-6.el6 will be an update
---> Package kernel.x86_64 0:2.6.32-358.2.1.el6 will be installed
---> Package kernel-firmware.noarch 0:2.6.32-358.el6 will be updated
---> Package kernel-firmware.noarch 0:2.6.32-358.2.1.el6 will be an update
---> Package libxml2.x86_64 0:2.7.6-8.el6_3.4 will be updated
---> Package libxml2.x86_64 0:2.7.6-12.el6_4.1 will be an update
---> Package mysql-libs.x86_64 0:5.1.66-2.el6_3 will be updated
---> Package mysql-libs.x86_64 0:5.1.67-1.el6_3 will be an update
---> Package openldap.x86_64 0:2.4.23-31.el6 will be updated
---> Package openldap.x86_64 0:2.4.23-32.el6_4 will be an update
---> Package openssl.x86_64 0:1.0.0-27.el6 will be updated
---> Package openssl.x86_64 0:1.0.0-27.el6_4.2 will be an update
---> Package selinux-policy.noarch 0:3.7.19-195.el6 will be updated
---> Package selinux-policy.noarch 0:3.7.19-195.el6_4.3 will be an update
---> Package selinux-policy-targeted.noarch 0:3.7.19-195.el6 will be updated
---> Package selinux-policy-targeted.noarch 0:3.7.19-195.el6_4.3 will be an update
---> Package tzdata.noarch 0:2012j-1.el6 will be updated
---> Package tzdata.noarch 0:2012j-2.el6 will be an update
--> Finished Dependency Resolution
Dependencies Resolved
==============================================================================================================
Package Arch Version Repository Size
==============================================================================================================
Installing:
kernel x86_64 2.6.32-358.2.1.el6 updates 26 M
Updating:
dbus-glib x86_64 0.86-6.el6 updates 170 k
kernel-firmware noarch 2.6.32-358.2.1.el6 updates 11 M
libxml2 x86_64 2.7.6-12.el6_4.1 updates 799 k
mysql-libs x86_64 5.1.67-1.el6_3 updates 1.2 M
openldap x86_64 2.4.23-32.el6_4 updates 265 k
openssl x86_64 1.0.0-27.el6_4.2 updates 1.4 M
selinux-policy noarch 3.7.19-195.el6_4.3 updates 1.8 M
selinux-policy-targeted noarch 3.7.19-195.el6_4.3 updates 2.8 M
tzdata noarch 2012j-2.el6 updates 453 k
Transaction Summary
==============================================================================================================
Install 1 Package(s)
Upgrade 9 Package(s)
Total download size: 46 M
Downloading Packages:
(1/10): dbus-glib-0.86-6.el6.x86_64.rpm | 170 kB 00:01
(2/10): kernel-2.6.32-358.2.1.el6.x86_64.rpm | 26 MB 04:11
(3/10): kernel-firmware-2.6.32-358.2.1.el6.noarch.rpm | 11 MB 01:45
(4/10): libxml2-2.7.6-12.el6_4.1.x86_64.rpm | 799 kB 00:06
(5/10): mysql-libs-5.1.67-1.el6_3.x86_64.rpm | 1.2 MB 00:11
(6/10): openldap-2.4.23-32.el6_4.x86_64.rpm | 265 kB 00:05
(7/10): openssl-1.0.0-27.el6_4.2.x86_64.rpm | 1.4 MB 00:12
(8/10): selinux-policy-3.7.19-195.el6_4.3.noarch.rpm | 1.8 MB 00:17
(9/10): selinux-policy-targeted-3.7.19-195.el6_4.3.noarch.rpm | 2.8 MB 00:27
(10/10): tzdata-2012j-2.el6.noarch.rpm | 453 kB 00:07
--------------------------------------------------------------------------------------------------------------
Total 105 kB/s | 46 MB 07:27
warning: rpmts_HdrFromFdno: Header V3 RSA/SHA1 Signature, key ID c105b9de: NOKEY
Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
Importing GPG key 0xC105B9DE:
Userid : CentOS-6 Key (CentOS 6 Official Signing Key)
Package: centos-release-6-4.el6.centos.10.x86_64 (@anaconda-CentOS-201303020151.x86_64/6.4)
From : /etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Updating : openssl-1.0.0-27.el6_4.2.x86_64 1/19
Updating : selinux-policy-3.7.19-195.el6_4.3.noarch 2/19
Updating : kernel-firmware-2.6.32-358.2.1.el6.noarch 3/19
Installing : kernel-2.6.32-358.2.1.el6.x86_64 4/19
Updating : selinux-policy-targeted-3.7.19-195.el6_4.3.noarch 5/19
Updating : mysql-libs-5.1.67-1.el6_3.x86_64 6/19
Updating : openldap-2.4.23-32.el6_4.x86_64 7/19
Updating : tzdata-2012j-2.el6.noarch 8/19
Updating : dbus-glib-0.86-6.el6.x86_64 9/19
Updating : libxml2-2.7.6-12.el6_4.1.x86_64 10/19
Cleanup : selinux-policy-targeted-3.7.19-195.el6.noarch 11/19
Cleanup : selinux-policy-3.7.19-195.el6.noarch 12/19
Cleanup : tzdata-2012j-1.el6.noarch 13/19
Cleanup : kernel-firmware-2.6.32-358.el6.noarch 14/19
Cleanup : mysql-libs-5.1.66-2.el6_3.x86_64 15/19
Cleanup : openssl-1.0.0-27.el6.x86_64 16/19
Cleanup : openldap-2.4.23-31.el6.x86_64 17/19
Cleanup : dbus-glib-0.86-5.el6.x86_64 18/19
Cleanup : libxml2-2.7.6-8.el6_3.4.x86_64 19/19
Verifying : libxml2-2.7.6-12.el6_4.1.x86_64 1/19
Verifying : kernel-firmware-2.6.32-358.2.1.el6.noarch 2/19
Verifying : dbus-glib-0.86-6.el6.x86_64 3/19
Verifying : selinux-policy-3.7.19-195.el6_4.3.noarch 4/19
Verifying : tzdata-2012j-2.el6.noarch 5/19
Verifying : mysql-libs-5.1.67-1.el6_3.x86_64 6/19
Verifying : openssl-1.0.0-27.el6_4.2.x86_64 7/19
Verifying : kernel-2.6.32-358.2.1.el6.x86_64 8/19
Verifying : openldap-2.4.23-32.el6_4.x86_64 9/19
Verifying : selinux-policy-targeted-3.7.19-195.el6_4.3.noarch 10/19
Verifying : tzdata-2012j-1.el6.noarch 11/19
Verifying : kernel-firmware-2.6.32-358.el6.noarch 12/19
Verifying : selinux-policy-3.7.19-195.el6.noarch 13/19
Verifying : openssl-1.0.0-27.el6.x86_64 14/19
Verifying : selinux-policy-targeted-3.7.19-195.el6.noarch 15/19
Verifying : mysql-libs-5.1.66-2.el6_3.x86_64 16/19
Verifying : libxml2-2.7.6-8.el6_3.4.x86_64 17/19
Verifying : openldap-2.4.23-31.el6.x86_64 18/19
Verifying : dbus-glib-0.86-5.el6.x86_64 19/19
Installed:
kernel.x86_64 0:2.6.32-358.2.1.el6
Updated:
dbus-glib.x86_64 0:0.86-6.el6 kernel-firmware.noarch 0:2.6.32-358.2.1.el6
libxml2.x86_64 0:2.7.6-12.el6_4.1 mysql-libs.x86_64 0:5.1.67-1.el6_3
openldap.x86_64 0:2.4.23-32.el6_4 openssl.x86_64 0:1.0.0-27.el6_4.2
selinux-policy.noarch 0:3.7.19-195.el6_4.3 selinux-policy-targeted.noarch 0:3.7.19-195.el6_4.3
tzdata.noarch 0:2012j-2.el6
Complete!
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