Redhat has released its major release of RHEL 6.6 on 14th October 2014, Since from the day of release every one is looking for upgrading the current version to latest RHEL release. This how to is mainly focusing on upgrading previous release of RHEL 6.x to the latest. Before going to update, lets look into the main features in the latest version.
Major changes:
- Red Hat Enterprise Linux 6.6 includes the Open vSwitch kernel module,
- KeepAlived and HAProxy packages are now fully supported,
- Added functionality of System Security Services Daemon (SSSD) enables better interoperability of Red Hat Enterprise Linux clients with Active Directory,
- Performance Co-Pilot (PCP) provides a framework and services to support system-level performance monitoring and management,
- New hyperv-daemons packages have been added to Red Hat Enterprise Linux 6.6.
See Red Hat 6.6 Release Notes and Red Hat 6.6 Technical Notes.
Check the current version of your release.
[root@server ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.5 (Santiago)Now lets look what are the updates available for your system.
[root@server ~]# yum check-updateThe following are the list of available updates for my machine.
Red_Hat_Enterprise_Linux-Release_Notes-6-en-US.noarch 6-2.el6 rhui-REGION-rhel-server-releases
abrt.x86_64 2.0.8-26.el6 rhui-REGION-rhel-server-releases
abrt-addon-ccpp.x86_64 2.0.8-26.el6 rhui-REGION-rhel-server-releases
abrt-addon-kerneloops.x86_64 2.0.8-26.el6 rhui-REGION-rhel-server-releases
abrt-addon-python.x86_64 2.0.8-26.el6 rhui-REGION-rhel-server-releases
abrt-cli.x86_64 2.0.8-26.el6 rhui-REGION-rhel-server-releases
abrt-libs.x86_64 2.0.8-26.el6 rhui-REGION-rhel-server-releases
abrt-tui.x86_64 2.0.8-26.el6 rhui-REGION-rhel-server-releases
alsa-utils.x86_64 1.0.22-7.el6 rhui-REGION-rhel-server-releasesIf you are satisfied with the updates, lets issue the following command to install the same.
[root@server ~]# yum updateYou will get the following information with download size, you need to confirm the installation by pressing Y and Enter.
gdk-pixbuf2 x86_64 2.24.1-5.el6 rhui-REGION-rhel-server-releases 501 k
libbasicobjects x86_64 0.1.1-11.el6 rhui-REGION-rhel-server-releases 21 k
python-sssdconfig noarch 1.11.6-30.el6 rhui-REGION-rhel-server-releases 120 k
sssd-ad x86_64 1.11.6-30.el6 rhui-REGION-rhel-server-releases 142 k
sssd-common-pac x86_64 1.11.6-30.el6 rhui-REGION-rhel-server-releases 121 k
sssd-ipa x86_64 1.11.6-30.el6 rhui-REGION-rhel-server-releases 195 k
sssd-krb5 x86_64 1.11.6-30.el6 rhui-REGION-rhel-server-releases 110 k
sssd-krb5-common x86_64 1.11.6-30.el6 rhui-REGION-rhel-server-releases 160 k
sssd-ldap x86_64 1.11.6-30.el6 rhui-REGION-rhel-server-releases 167 k
sssd-proxy x86_64 1.11.6-30.el6 rhui-REGION-rhel-server-releases 116 k
Transaction Summary
========================================================================================================================================================================
Install 12 Package(s)
Upgrade 237 Package(s)
Total download size: 306 M
Is this ok [y/N]: y
Downloading Packages:
(1/249): Red_Hat_Enterprise_Linux-Release_Notes-6-en-US-6-2.el6.noarch.rpm | 92 kB 00:00
(2/249): abrt-2.0.8-26.el6.x86_64.rpm | 210 kB 00:00
(3/249): abrt-addon-ccpp-2.0.8-26.el6.x86_64.rpm | 117 kB 00:00
(4/249): abrt-addon-kerneloops-2.0.8-26.el6.x86_64.rpm | 68 kB 00:00
(5/249): abrt-addon-python-2.0.8-26.el6.x86_64.rpm | 65 kB 00:00
(6/249): abrt-cli-2.0.8-26.el6.x86_64.rpm | 55 kB 00:00
(7/249): abrt-libs-2.0.8-26.el6.x86_64.rpm | 65 kB 00:00
(8/249): abrt-tui-2.0.8-26.el6.x86_64.rpm | 62 kB 00:00
(9/249): alsa-utils-1.0.22-7.el6.x86_64.rpm | 2.0 MB 00:00
Once downloaded, it will automatically start installing it.
(247/249): yum-plugin-security-1.1.30-30.el6.noarch.rpm | 41 kB 00:00
(248/249): yum-rhn-plugin-0.9.1-50.el6.noarch.rpm | 80 kB 00:00
(249/249): yum-utils-1.1.30-30.el6.noarch.rpm | 110 kB 00:00
------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 6.5 MB/s | 306 MB 00:47
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Updating : libgcc-4.4.7-11.el6.x86_64 1/487
Updating : yum-3.2.29-60.el6.noarch 2/487
Updating : tzdata-java-2014h-1.el6.noarch 3/487
Updating : redhat-release-server-6Server-6.6.0.2.el6.x86_64 4/487
Once completed, reboot the machine
[root@client ~]# rebootYou can verify the RHEL version.
[root@client ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.6 (Santiago)That’s All!, now you have the latest version of RHEL.