25 May 2009 Replace RPMforge packages with Redhats own on a RHEL5 system
This post came to life after experiencing some upgrade problems with missing dependencies and RPM packages from RPMforge and Redhat Enterprise Linux Client release 5. The prosess to remove or replace the packages was to remove RPMforge as a package repository and replace the blocking packages with Redhats own packages.
The process of replacing RPMforge packages with Redhats own packages
First we remove rpmforge as package repository
rpm -e rpmforge
This command removes the /etc/yum.repos.d/rpmforge.repo file.
Then we list all packages installed from the RPMforge repository to get an overview of the packages causing problems on the system.
rpm -qa --queryformat %{NAME}-%{VERSION}-%{ARCH}-%{RELEASE}\\n|sort|grep el5.rf
The result
dnsmasq-2.47-x86_64-1.el5.rf libsndfile-1.0.17-x86_64-1.el5.rf lftp-3.7.12-x86_64-1.el5.rf ...
The rf ending tells you that these packages are RPMforge packages. This command also tells you if it is 32bit (i386) or 64bit (x86_64) packages. I’ve described the prosess of removing 32- and 64bits packages in a earlier post named Remove duplicate packages when querying the rpm database.
Howto remove 64bit packages
yum remove libsndfile.x86_64
Next we will download the packages we want to replace, in my case dnsmasq
On a RHEL5 system
yumdownloader dnsmasq
If you don’t have yumdownloader in your system you have to install the yum-utils package.
On a RHEL4 system
up2date -d dnsmasq
Then we replace the RPMforge RPM package with Redhats own package
# rpm -Uvh --replacepkgs --oldpackage dnsmasq-2.45-1.el5_2.1.x86_64.rpm Preparing... ########################################### [100%] 1:dnsmasq ########################################### [100%]
If you don’t use the –oldpackage option you might get an error message like this
package dnsmasq-2.47-1.el5.rf.x86_64 (which is newer than dnsmasq-2.45-1.el5_2.1.x86_64) is already installed
I continued removing RPMForge packages until yum managed to resolve any unresolved dependencies.
Tags: RedHat, RHEL4, rhel5, rpmforge
Posted by Hans-Henry Jakobsen
17 Sep 2008 Disable IPv6 on Redhat RHEL4
First you remove this line from /etc/modprobe.conf if this line exists.
alias net-pf-10 ipv6
Add the following line to /etc/modprobe.conf
alias net-pf-10 off
Reboot the system. IPv6 is now disabled.
To re-enable IPv6, remove the alias net-pf-10 off line from /etc/modprobe.conf and reboot the machine.
I’ve also made a post about how to disable IPv6 on RHEL5.
Posted by Hans-Henry Jakobsen
13 Sep 2008 Convert unix timestamp to date
# date -d @1221256800 "+%Y-%m-%d %T" 2008-09-13 00:00:00
Convert a date (YYYYMMDD) to unix timestamp
# date -d "20080913" +%s 1221256800
Posted by Hans-Henry Jakobsen
23 Nov 2007 Remove duplicate packages when querying the rpm database
Today I had to solve a RPM problem on a Red Hat Enterprise Linux WS release 4 (Nahant Update 6) system (RHEL4) where there were duplicate packages when querying the rpm database. This had happened after an upgrade to update 6 using up2date from the command line.
It seemed like i386 and x64 packages had gotten installed on some packages and this caused some problems, like logon authentication and execution of some programs.
Trying to remove a duplicate rpm package
# rpm -e libtool-libs-1.5.6-4.El4.2
gave the error message
error: "libtool-libs-1.5.6-4.El4.2" specifies multiple packages
After searching the Red Hat knowledge base I located article Why do I see duplicate packages when querying the rpm database? where it says it is necessary to specify the architecture of the package to remove.
# rpm -qa --queryformat %{NAME}-%{VERSION}-%{ARCH}\\n
If you add %{RELEASE} you can also determine if the package is from other package vendors like RPMForge.
Since this was a x64 system, I wanted to remove the i386 version
# rpm -e libtool-libs-1.5.6-4.El4.2.i386
This had to be done with every duplicate package on the system.
Locate the i386 packages that interfered with the x64 packages can be done using the command
rpm -qa | sort | uniq -d
These packages have dependencies so you have to add these manually, really fun job to do.
Edit:
In RHEL5 you can use yum to remove packages in a easy way
yum remove <package>.i386 yum remove <package>.x86_64
Tags: RedHat, RHEL4, rhel5, rpm, up2date
Posted by Hans-Henry Jakobsen
