HowTo: Upgrade Red Hat Enterprise Linux to v5.5

How do I upgrade to Redhat Enterprise Linux server to v.5.5 from 5.4 or earlier version?

The new update RHEL 5.5 release features new hardware platform enablement, expanded virtualization capabilities and enhanced interoperability. You can simply upgrade it using the yum command:

WARNING! Make a backup – it cannot be stressed enough how important it is to make a backup of your system before you do this.

Most of the actions listed in this post are written with the assumption that they will be executed by the root user running the bash or any other modern shell. Type the following commands
# uname -a
# yum update

Sample outputs:

Loaded plugins: downloadonly, protectbase, rhnplugin, security, verify
0 packages excluded due to repository protections
Skipping security plugin, no data
Setting up Update Process
Resolving Dependencies
Skipping security plugin, no data
--> Running transaction check
---> Package NetworkManager.x86_64 1:0.7.0-10.el5 set to be updated
---> Package NetworkManager-glib.x86_64 1:0.7.0-10.el5 set to be updated
---> Package OpenIPMI.x86_64 0:2.0.16-7.el5 set to be updated
---> Package OpenIPMI-libs.x86_64 0:2.0.16-7.el5 set to be updated
---> Package OpenIPMI-tools.x86_64 0:2.0.16-7.el5 set to be updated
---> Package acl.x86_64 0:2.2.39-6.el5 set to be updated
--> Processing Dependency: for package: poppler-utils
---> Package python-dmidecode.x86_64 0:3.10.8-4.el5 set to be updated
--> Running transaction check
--> Processing Dependency: for package: memcached
---> Package poppler.x86_64 0:0.5.4-4.4.el5_4.11 set to be updated
epel/filelists_db                                                                                                                      | 4.1 MB     00:09     
ksplice-uptrack/filelists                                                                                                              | 2.3 kB     00:00     
rhel-x86_64-server-5/filelists                                                                                                         |  21 MB     00:03     
rhel-x86_64-server-vt-5/filelists                                                                                                      | 207 kB     00:
 valgrind                                         i386                    1:3.5.0-1.el5                          rhel-x86_64-server-5                   20 M
 valgrind                                         x86_64                  1:3.5.0-1.el5                          rhel-x86_64-server-5                   20 M
 vconfig                                          x86_64                  1.9-3                                  rhel-x86_64-server-5                   55 k
 wpa_supplicant                                   x86_64                  1:0.5.10-9.el5                         rhel-x86_64-server-5                  260 k
 yum                                              noarch                  3.2.22-26.el5                          rhel-x86_64-server-5                  1.0 M
 yum-rhn-plugin                                   noarch                  0.5.4-15.el5                           rhel-x86_64-server-5                   59 k
 kernel                                           x86_64                  2.6.18-164.10.1.el5                    installed                              87 M
 kernel-devel                                     x86_64                  2.6.18-164.10.1.el5                    installed                              16 M
Installing for dependencies:
 libsmbclient                                     x86_64                  3.0.33-3.28.el5                        rhel-x86_64-server-5                  916 k
 python-dmidecode                                 x86_64                  3.10.8-4.el5                           rhel-x86_64-server-5                   89 k

Transaction Summary
Install      4 Package(s)         
Update     160 Package(s)         
Remove       2 Package(s)         

Total download size: 228 M
Is this ok [y/N]:
output truncated 

Reboot the server:
# reboot
Verify everything is working:
# uname -a
Sample outputs:

Linux 2.6.18-194.el5 #1 SMP Tue Mar 16 21:52:39 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux

See /etc/redhat-release file, enter:
# cat /etc/redhat-release

Red Hat Enterprise Linux Server release 5.5 (Tikanga)

Verify that ports are open and all services are running:
# netstat -tulpn
# tail -f /var/log/messages
# tail -f /path/to/log/file


man yum

Posted by: SXI ADMIN

The author is the creator of SXI LLC and a seasoned sysadmin, DevOps engineer, and a trainer for the Linux operating system/Unix shell scripting. Get the latest tutorials on SysAdmin, Linux/Unix and open source topics via RSS/XML feed or weekly email newsletter.

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