centos_Error: Protected multilib versions_解決方法
yum install libc.so.6
Loaded plugins: fastestmirror, refresh-packagekit
Repository base is listed more than once in the configuration
Repository updates is listed more than once in the configuration
Repository extras is listed more than once in the configuration
Repository centosplus is listed more than once in the configuration
Repository contrib is listed more than once in the configuration
Loading mirror speeds from cached hostfile
* base: ftp.stust.edu.tw
* epel: mirrors.yun-idc.com
* extras: mirror01.idc.hinet.net
* rpmforge: ftp.riken.jp
* updates: ftp.tc.edu.tw
Setting up Install Process
Resolving Dependencies
There are unfinished transactions remaining. You might consider running yum-complete-transaction first to finish them.
--> Running transaction check
---> Package glibc.i686 0:2.12-1.107.el6_4.2 will be installed
--> Processing Dependency: libfreebl3.so(NSSRAWHASH_3.12.3) for package: glibc-2.12-1.107.el6_4.2.i686
--> Processing Dependency: libfreebl3.so for package: glibc-2.12-1.107.el6_4.2.i686
--> Running transaction check
---> Package nss-softokn-freebl.i686 0:3.14.3-3.el6_4 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 glibc which is missing some
dependency that another package requires. Yum is trying to
solve this by installing an older version of glibc 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 glibc.otherarch ... this should give you an error
message showing the root cause of the problem.
2. You have multiple architectures of glibc 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 glibc 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: glibc-2.12-1.107.el6_4.2.i686 != glibc-2.12-1.47.el6.x86_64
Error: Protected multilib versions: nss-softokn-freebl-3.14.3-3.el6_4.i686 != nss-softokn-freebl-3.12.9-11.el6.x86_64
You could try using --skip-broken to work around the problem
** Found 111 pre-existing rpmdb problem(s), 'yum check' output follows:
SDL-1.2.14-3.el6.x86_64 is a duplicate with SDL-1.2.14-2.el6.x86_64
atlas-3.8.4-2.el6.x86_64 is a duplicate with atlas-3.8.4-1.el6.x86_64
audit-libs-2.2-2.el6.x86_64 is a duplicate with audit-libs-2.1.3-3.el6.x86_64
augeas-libs-0.9.0-4.el6.x86_64 is a duplicate with augeas-libs-0.9.0-1.el6.x86_64
bash-4.1.2-15.el6_4.x86_64 is a duplicate with bash-4.1.2-8.el6.centos.x86_64
boost-date-time-1.41.0-17.el6_4.x86_64 is a duplicate with boost-date-time-1.41.0-11.el6_1.2.x86_64
錯誤的解決方法（很多就在提示裡面）：
#1 手動處理重復
這個是要死人的
#2 刪除重復的
這個有時候會導致已經編譯和安裝的軟件出問題，所以還是要有心理准備
#3 自動刪除重復命令
package-cleanup --cleandupes
這個也會導致#2 的問題
#4 在yum命令後面加入忽略參數：--setopt=protected_multilib=false
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).
這裡說了，很可能導致more probems。不過麼，現實中，可以試試看，尤其是保持一個老系統照舊運行時，這個方法會起作用的。
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