We are doing an upgrade of RHEL 6.1 to 6.4. It is applicable
to other versions and distributions like CentOS.
1) Create a local repository to have all the packages of the
new version available.
Create
a file called /etc/yum.repos.d/server64.repo with the following contents:
[server64x64]
name=Red Hat Enterprise Linux 6.4 x64
baseurl=ftp://ftprepo.domain.local/RHEL/rhel64x64/Server
enabled=1
gpgcheck=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
2) Verify what is the current running version and kernel.
#
uname -a
Linux SERVER1.domain.local 2.6.32-131.0.15.el6.x86_64 #1 SMP Tue May 10
15:42:40 EDT 2011 x86_64 x86_64 x86_64 GNU/Linux
# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.1 (Santiago)
3) List the available packages and specially the kernel
version. Limit yum to use the new repository only.
yum
--disablerepo="*" --enablerepo="server64x64" list available
yum --disablerepo="*" --enablerepo="server64x64" list
kernel
4) Run the update command and wait it for completion.
For interactive mode, when
questions have to be answered to proceed with the update, use:
yum
--disablerepo="*" --enablerepo="server64x64" update
For automated mode, assuming all
questions will be answered as “yes”, use:
yum
–y --disablerepo="*" --enablerepo="server64x64" update
Example of what will be presented on the screen:
Transaction Summary
================================================================================
Install 21 Package(s)
Upgrade 278 Package(s)
Total download size: 224 M
Is this ok [y/N]:
Replaced:
abrt-plugin-logger.x86_64
0:1.1.16-3.el6
abrt-plugin-mailx.x86_64
0:1.1.16-3.el6
abrt-plugin-rhtsupport.x86_64
0:1.1.16-3.el6
abrt-plugin-sosreport.x86_64 0:1.1.16-3.el6
libjpeg.x86_64 0:6b-46.el6
Complete!
5) Verify the new version of the OS
#
uname -a
Linux SERVER1.domain.local 2.6.32-131.0.15.el6.x86_64 #1 SMP Tue May 10
15:42:40 EDT 2011 x86_64 x86_64 x86_64 GNU/Linux
#cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.4 (Santiago)
6) Reboot to finish the process and to allow the new kernel
and configuration be activated.
PS: RHEL 6.4 ships samba version 3.6. It has different configuration
parameters in /etc/samba/smb.conf file when doing authentication thru AD.
Below are the required changes:
Before:
; idmap uid = 10000-20000
; idmap gid = 10000-20000
; idmap backend =
rid:DOMAIN=10000-20000
After:
idmap config * : backend = tdb
idmap config * : range =
20001-30000
idmap config DOMAIN : backend = rid
idmap config DOMAIN : range =
10000-20000
idmap config DOMAIN : base_rid
= 0
(Replace DOMAIN with the short name of your domain name)
7) End
