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Fixing Yum dependency problems on RedHat Linux and CentOS

Balazs — Sun, 30 Aug 2009 16:49:55 +0000

Yum update fails

I see the question of failed dependencies come up on forums quite a bit. Users post errors like:

Missing Dependency: bind-utils = 9.3.4-10.P1.el5_3.1 is needed bind-sdb-9.3.4-10.P1.el5_3.1

ImageMagick-perl-6.2.8.0-4.el5_1.1.x86_64 from installed has depsolving problems --> Missing Dependency: /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux-thread-multi is needed by package ImageMagick-perl-6.2.8.0-4.el5_1.1.x86_64

httpd-2.2.3-22.el5.centos.2.x86_64 from updates has depsolving problems --> Missing Dependency: /usr/share/magic.mime is needed by package httpd-2.2.3-22.el5.centos.2.x86_64 (updates)

In all these cases, the solution is to clean yum:yum clean all

References

Kajuhome.com

libstdc++.so.5 is needed by xxx

Balazs — Wed, 07 Jan 2009 13:55:18 +0000

Trying to install the IBM JDK 64bit I came across the following error:

libstdc++.so.5 is needed by ibm-java2-x86_64-sdk-5.0-8a.0.x86_64

It turns out that yum has a neat feature to show what package provides a given component:

yum whatprovides libstdc++.so.5

gave the answer, and

yum install compat-libstdc++-33.i386

took care of installingthe missing package.

Public key for xxx.rpm is not installed

Balazs — Wed, 07 Jan 2009 12:56:02 +0000

After an upgrade to CentOS 5 / RHEL 5 we got the following error:

Downloading Packages:
warning: rpmts_HdrFromFdno: Header V3 DSA signature: NOKEY, key ID e8562897
Public key for openldap-2.3.27-8.el5_2.4.x86_64.rpm is not installed

It turns out that the key needs to be loaded and yum has not tried to load the key properly. The following manual key loading solved the issue:

rpm --import http://mirror.centos.org/centos/RPM-GPG-KEY-CentOS-5