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Nikolai Prokoschenko
Asked: 2009-10-23 02:33:37 +0800 CST

RHEL5: Forbid installation of i386 packages on 64-bit systems?

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Everytime I install something with yum, it tries to install both x86_64 and i386 versions of the package if both are available. Is there any way I can forbid that without specifying the arch of the package?

rhel5

7 Answers

  1. Best Answer

    Add multilib_policy=best to your /etc/yum.conf

    Yum will now try to install the "best" package.arch for your system and it will only install that one (as long as it is available).

    Assuming you're on a 64-Bit system, yum will first try to install package.x86_64, if that doesn't exist it will fall back to i386 and noarch.

    The default setting is multilib_policy=all, which means to install all possible arches.

    • 16

  2. I've been using option exactarch=1 in /etc/yum.conf for some time, and it has worked for me.

    It still allows you to manually specify arch, but if you don't, it install only x86_64, not both.

    According to el6 manual, yum.conf(5):

              exactarch  Either  ‘1’  or ‘0’. Set to ‘1’ to make yum update only update the architectures of
          packages that you have installed. ie: with this enabled yum will not install an  i686  package
          to update an i386 package. Default is ‘1’.

    ...

              multilib_policy  Can  be set to ’all’ or ’best’. All means install all possible arches for any
          package you want to install. Therefore yum install foo will install foo.i386 and foo.x86_64 on
          x86_64, if it is available. Best means install the best arch for this platform, only.

    BTW, both multilib_policy=best and exactarch=1 seem to be the default for some time now.

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  3. Use the exclude function in yum.conf:

    exclude=*.i386 *.i686
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  4. It would try to install i386 version if you have x86_64 version already installed.

    Pay attention that if you use exclude in yum.conf you could exclude packages only being available in i386 arch

    A safer way could be to explicitly request the arch at install time:

    yum install package.x86_64
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  5. -x, --exclude=package Exclude a specific package by name or glob from updates on all repositories. Configuration Option: exclude

    --disableexcludes=[all|main|repoid] Disable the excludes defined in your config files. Takes one of three options: all == disable all excludes main == disable excludes defined in [main] in yum.conf repoid == disable excludes defined for that repo

    above from man you can use or you can install yumex which give gui u can choose the rpm which you need to install.

    http://www.yum-extender.org/blog/

    • 0

  6. What works for me is removing all of the ix86 packages from the machine. Now it never asks me to install any 32bit anything.

    First setup your .rpmmacros like this:

    cat ~/.rpmmacros
%_query_all_fmt %%{name}-%%{version}-%%{release}.%%{arch}

    Then run this (I'm assuming bash):

    rpm -qa | egrep "i.86$"

    That will give you a list of non x86_64 rpms currently installed. You can remove all of them with this:

    rpm -e $(rpm -qa | egrep "i.x86$")

    Now you have a pure 64bit system.

    -Dave

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  7. List i386

    yum list installed | grep i386

    And now you can remove it or update it to x86_64

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