Make centos5 64bit yum install only x86_64 packages

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Make centos5 64bit yum install only x86_64 packages

Postby lik » Fri Aug 24, 2012 5:07 pm

Everytime you install or update packages with yum on Centos5/RHEL5, it tries to install both x86_64 and i386 versions of the package if both are available.
This problem arise only on Centos5 because yum defaults to:
Code: Select all
multilib_policy=all

what means install all available architectures of package. For example, if you are running 64bit system, yum will first try to install package.x86_64, if it`s not available yum will fall back to i386 and noarch.
This was changed in Centos6 to default to:
Code: Select all
multilib_policy=best

what means install the best packages for my architecture. On x86_64 system means 64bit package will be installed unless the package is only available in 32bit/noarch format.
Thus, we need to re-define 'multilib_policy' default value via /etc/yum.conf on Centos5:
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multilib_policy=best

Further we can remove odd 32bit packages if they are not required.
lik
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