Question

我正面临着＆＃34; yum install krb5-server＆＃34;在RHEL 6.9上。我这样做是为了在MapR 5.2集群上安装Kerberos。问题如下：

[root@master ~]# yum install krb5-server


Loaded plugins: product-id, refresh-packagekit, search-disabled-repos, security, subscription-manager
This system is not registered with an entitlement server. You can use subscription-manager to register.
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package krb5-server.x86_64 0:1.10.3-57.el6 will be installed
--> Processing Dependency: krb5-libs = 1.10.3-57.el6 for package: krb5-server-1.10.3-57.el6.x86_64
--> Running transaction check
---> Package krb5-libs.i686 0:1.10.3-57.el6 will be installed
--> Processing Dependency: libselinux.so.1 for package: krb5-libs-1.10.3-57.el6.i686
--> Processing Dependency: libresolv.so.2(GLIBC_2.2) for package: krb5-libs-1.10.3-57.el6.i686
--> Processing Dependency: libresolv.so.2 for package: krb5-libs-1.10.3-57.el6.i686
--> Processing Dependency: libm.so.6 for package: krb5-libs-1.10.3-57.el6.i686
--> Processing Dependency: libkeyutils.so.1(KEYUTILS_0.3) for package: krb5-libs-1.10.3-57.el6.i686
--> Processing Dependency: libkeyutils.so.1 for package: krb5-libs-1.10.3-57.el6.i686
--> Processing Dependency: libdl.so.2(GLIBC_2.1) for package: krb5-libs-1.10.3-57.el6.i686
--> Processing Dependency: libdl.so.2(GLIBC_2.0) for package: krb5-libs-1.10.3-57.el6.i686
--> Processing Dependency: libdl.so.2 for package: krb5-libs-1.10.3-57.el6.i686
--> Processing Dependency: libcom_err.so.2 for package: krb5-libs-1.10.3-57.el6.i686
--> Processing Dependency: libc.so.6(GLIBC_2.9) for package: krb5-libs-1.10.3-57.el6.i686
--> Running transaction check
---> Package glibc.i686 0:2.12-1.192.el6 will be installed
--> Processing Dependency: libfreebl3.so(NSSRAWHASH_3.12.3) for package: glibc-2.12-1.192.el6.i686
--> Processing Dependency: libfreebl3.so for package: glibc-2.12-1.192.el6.i686
---> Package keyutils-libs.i686 0:1.4-5.el6 will be installed
---> Package libcom_err.i686 0:1.41.12-22.el6 will be installed
---> Package libselinux.i686 0:2.0.94-7.el6 will be installed
--> Running transaction check
---> Package nss-softokn-freebl.i686 0:3.14.3-23.3.el6_8 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 krb5-libs which is missing some
            dependency that another package requires. Yum is trying to
            solve this by installing an older version of krb5-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 krb5-libs.otherarch ... this should give you an error
            message showing the root cause of the problem.

         2. You have multiple architectures of krb5-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 krb5-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: krb5-libs-1.10.3-57.el6.i686 != krb5-libs-1.10.3-65.el6.x86_64
Error: Protected multilib versions: libcom_err-1.41.12-22.el6.i686 != libcom_err-1.41.12-23.el6.x86_64

[root@master ~]#

Answer 1

如果从较新的安装媒体安装系统然后订阅仅提供旧版软件包的软件频道，则会发生这样的错误。我通常会在人们安装测试版时看到它，然后在安装后不启用测试版通道（这是一个手动步骤）。

提示在这一行：

       Protected multilib versions: krb5-libs-1.10.3-57.el6.i686 != krb5-libs-1.10.3-65.el6.x86_64
Error: Protected multilib versions: libcom_err-1.41.12-22.el6.i686 != libcom_err-1.41.12-23.el6.x86_64

Yum尝试安装版本1.10.3-57.el6，而已安装1.10.3-65。（你可以忽略i686 / x86_64的区别，yum在尝试找出这里要安装的内容时真的错了。）

Red Hat Enterprise Linux 6.9已经发布，因此它不是通常的beta问题。您需要使用yum repolist -v检查频道订阅，然后使用subscription-manager repos --disable=… --enable=…来修复频道配置。

如果您使用Satellite，则应用于您系统的策略可能会向其提供错误版本的操作系统。在这种情况下，您可能必须在Satellite基础架构中进行更改。

如果由于某种原因，您需要EUS版本的Red Hat Enterprise Linux（早于6.9），您应该只使用它设置一个新系统。降级可能相当困难。

Answer 2

如何删除yum缓存，然后重试它。

# yum clean all

或

# rm -rf /var/cache/yum

# yum update

# yum install krb5-server

在RHEL 6.9上安装krb5-server时面对库依赖项

2 个答案: