CentOS 6.5：yum 堅持在 64 位安裝上安裝 32 位軟體包導致多庫問題

今天早上我嘗試在我的一台伺服器上安裝 libvirt。yum 安裝因與 plymouth-core-libs 軟體包相關的多庫問題而失敗。後來，在嘗試 yum 更新時，我遇到了一個類似的問題，但是帶有 multilib 問題的軟體包是：dbus-libs。

再深入研究一下，儘管安裝了 64 位軟體包，但 yum 似乎出於某種原因嘗試安裝這些軟體包的 32 位 (i686) 版本。rpm -qa 顯示沒有安裝這些軟體包的 32 位版本。

關於接下來要嘗試什麼以使 yum 進入良好狀態（並希望更喜歡 64 位軟體包）的任何想法？

輸出：檢查

# yum check
Loaded plugins: fastestmirror
kernel-2.6.32-431.el6.x86_64 has missing requires of dracut-kernel >= ('0', '002', '18.git413bcf78')
kernel-2.6.32-431.3.1.el6.x86_64 has missing requires of dracut-kernel >= ('0', '002', '18.git413bcf78')
Error: check all

更新

# yum update
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: ftp.sunet.se
* extras: ftp.sunet.se
* rpmforge: mirror.zetup.net
* updates: ftp.sunet.se
Setting up Update Process
Resolving Dependencies
--> Running transaction check
---> Package kernel.x86_64 0:2.6.32-431.5.1.el6 will be installed
--> Processing Dependency: dracut-kernel >= 002-18.git413bcf78 for package: kernel-2.6.32-431.5.1.el6.x86_64
--> Running transaction check
---> Package dracut-kernel.noarch 0:004-336.el6_5.2 will be installed
--> Processing Dependency: dracut = 004-336.el6_5.2 for package: dracut-kernel-004-336.el6_5.2.noarch
--> Running transaction check
---> Package dracut.noarch 0:004-336.el6_5.2 will be installed
--> Processing Dependency: plymouth >= 0.8.0-0.2009.29.09.19.1 for package: dracut-004-336.el6_5.2.noarch
--> Running transaction check
---> Package plymouth.x86_64 0:0.8.3-27.el6.centos will be installed
--> Processing Dependency: plymouth-core-libs = 0.8.3-27.el6.centos for package: plymouth-0.8.3-27.el6.centos.x86_64
--> Processing Dependency: system-logos for package: plymouth-0.8.3-27.el6.centos.x86_64
--> Running transaction check
---> Package plymouth-core-libs.i686 0:0.8.3-27.el6.centos will be installed
--> Processing Dependency: librt.so.1(GLIBC_2.2) for package: plymouth-core-libs-0.8.3-27.el6.centos.i686
--> Processing Dependency: librt.so.1 for package: plymouth-core-libs-0.8.3-27.el6.centos.i686
--> Processing Dependency: libm.so.6(GLIBC_2.1) for package: plymouth-core-libs-0.8.3-27.el6.centos.i686
--> Processing Dependency: libm.so.6(GLIBC_2.0) for package: plymouth-core-libs-0.8.3-27.el6.centos.i686
--> Processing Dependency: libm.so.6 for package: plymouth-core-libs-0.8.3-27.el6.centos.i686
--> Processing Dependency: libdl.so.2(GLIBC_2.1) for package: plymouth-core-libs-0.8.3-27.el6.centos.i686
--> Processing Dependency: libdl.so.2(GLIBC_2.0) for package: plymouth-core-libs-0.8.3-27.el6.centos.i686
--> Processing Dependency: libdl.so.2 for package: plymouth-core-libs-0.8.3-27.el6.centos.i686
--> Processing Dependency: libc.so.6(GLIBC_2.8) for package: plymouth-core-libs-0.8.3-27.el6.centos.i686
---> Package redhat-logos.noarch 0:60.0.14-12.el6.centos will be installed
--> Running transaction check
---> Package glibc.i686 0:2.12-1.132.el6 will be installed
--> Processing Dependency: libfreebl3.so(NSSRAWHASH_3.12.3) for package: glibc-2.12-1.132.el6.i686
--> Processing Dependency: libfreebl3.so for package: glibc-2.12-1.132.el6.i686
--> Running transaction check
---> Package nss-softokn-freebl.i686 0:3.14.3-9.el6 will be installed
--> Finished Dependency Resolution
Error:  Multilib version problems found. This often means that the root
      cause is something else and multilib version checking is just
      pointing out that there is a problem. Eg.:

        1. You have an upgrade for plymouth-core-libs which is missing some
           dependency that another package requires. Yum is trying to
           solve this by installing an older version of plymouth-core-libs of the
           different architecture. If you exclude the bad architecture
           yum will tell you what the root cause is (which package
           requires what). You can try redoing the upgrade with
           --exclude plymouth-core-libs.otherarch ... this should give you an error
           message showing the root cause of the problem.

        2. You have multiple architectures of plymouth-core-libs installed, but
           yum can only see an upgrade for one of those arcitectures.
           If you don't want/need both architectures anymore then you
           can remove the one with the missing update and everything
           will work.

        3. You have duplicate versions of plymouth-core-libs installed already.
           You can use "yum check" to get yum show these errors.

      ...you can also use --setopt=protected_multilib=false to remove
      this checking, however this is almost never the correct thing to
      do as something else is very likely to go wrong (often causing
      much more problems).

      Protected multilib versions: plymouth-core-libs-0.8.3-27.el6.centos.i686 != plymouth-core-libs-0.8.3-27.0.1.el6.x86_64
You could try using --skip-broken to work around the problem
** Found 2 pre-existing rpmdb problem(s), 'yum check' output follows:
kernel-2.6.32-431.el6.x86_64 has missing requires of dracut-kernel >= ('0', '002', '18.git413bcf78')
kernel-2.6.32-431.3.1.el6.x86_64 has missing requires of dracut-kernel >= ('0', '002', '18.git413bcf78')

第一次嘗試yum distro-sync。如果您仍然無法同步，請使用該--skip-broken標誌。

引用自：https://serverfault.com/questions/580492