Managing Yum @ Redhat / Oracle Enterprise 4
Most of the times while we are installing prerequisites for the oracle installation, its some what painful to get the updated rpms and dependencies, especially in Redhat Enterprise and Oracle Enterpirse version 4. The following document explains us to overcome this issue.
Yum is the easiest way to keep all programs up to date. It downloads and installs the latest version of a program. A single command can update all software installed, including third-party software, security updates and operating system. In this howto, we install yum (on Redhat&Oracle Enterpirse OS ) and make it do all the above.
First remove the installed yum rpms.
# rpm -e `rpm -qa|grep yum`
Go to the folder where you want to download yum. Most likely cd /tmp/.
# wget -c http://dag.wieers.com/rpm/packages/yum/yum-2.4.2-0.4.el4.rf.noarch.rpm
# rpm -ivh yum-2.4.2-0.4.el4.rf.noarch.rpm
If you can see the file with ls, you are on the right place.
Delete all the repository file in the /etc/yum.repos.d/
# cd /etc/yum.repos.d/ # rm -rf *
Create a new Base file in /etc/yum.repos.d and add the contents
# vi /etc/yum.repos.d/CentOS-Base.repo
[base]
name=CentOS-$releasever – Base
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos4
priority=1
protect=1
[update]
name=CentOS-$releasever – Updates
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos4
priority=1
protect=1
[addons]
name=CentOS-$releasever – Addons
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=addons
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos4
priority=1
protect=1
[extras]
name=CentOS-$releasever – Extras
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras
gpgcheck=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos4
priority=1
protect=1
[centosplus]
name=CentOS-$releasever – Plus
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus
gpgcheck=1
enabled=1
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos4
priority=2
protect=1
[contrib]
name=CentOS-$releasever – Contrib
mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=contrib
gpgcheck=1
enabled=0
gpgkey=http://mirror.centos.org/centos/RPM-GPG-KEY-centos4
priority=2
protect=1
<!–[endif]–>
Restart the yum service and now you are ready to update or install any packages.
Add trusted packagers to your keys
In yum, it really does not matter if enemy takes over the internet and fakes to be some website offering software. All software is cryptographically checked before installation (if you have set gpgcheck=1 in yum.conf). To install some software, we must tell yum who we trust.
For the first update or install of any package, it asks to import Trusted Key’s. Now you need to just press “Y”.
Is this ok [y/N]: y
If you are unable to find the updates from the Vendor repository, use dag.wieer repository rpm where you can find all rpms and dependencies details.
# rpm -Uhv http://apt.sw.be/redhat/el4/en/i386/rpmforge/RPMS/rpmforge-release-0.3.6-1.el4.rf.i386.rpm
# service yum restart
Now you can install any package for this architecture.