CentOS yum 和 rpm 出現 `XZ_5.1.2alpha' not found - Linux

小弟目前用的一台虛擬機 CentOS 7.3
下載xz5.2.3編譯，卻無法使用，東搞西搞，用yum reinstall xz把它還原回來等等之類的
後來總之我把/usr/bin/xz弄成5.2.3版

但是我的yum及rpm就不能用

$ yum

There was a problem importing one of the Python modules
required to run yum. The error leading to this problem was:

/lib/liblzma.so.5: version `XZ_5.1.2alpha' not found (required by /lib64/librpmio.so.3)

Please install a package which provides this module, or
verify that the module is installed correctly.

It's possible that the above module doesn't match the
current version of Python, which is:
2.7.5 (default, Nov 6 2016, 00:28:07)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-11)]

If you cannot solve this problem yourself, please go to
the yum faq at:
http://yum.baseurl.org/wiki/Faq

$ rpm

rpm: /lib/liblzma.so.5: version `XZ_5.1.2alpha' not found (required by /lib64/librpmio.so.3)

若下 $ ldd /lib64/librpmio.so.3

/lib64/librpmio.so.3: /lib/liblzma.so.5: version `XZ_5.1.2alpha' not found (required by /lib64/librpmio.so.3)
linux-vdso.so.1 => (0x00007ffe03d9d000)
libnss3.so => /lib64/libnss3.so (0x00007f5636d28000)
libbz2.so.1 => /lib64/libbz2.so.1 (0x00007f5636b18000)
libz.so.1 => /lib64/libz.so.1 (0x00007f5636901000)
libelf.so.1 => /lib64/libelf.so.1 (0x00007f56366e9000)
libpopt.so.0 => /lib64/libpopt.so.0 (0x00007f56364df000)
liblzma.so.5 => /lib/liblzma.so.5 (0x00007f56362b9000) <----在這
liblua-5.1.so => /lib64/liblua-5.1.so (0x00007f563608b000)
libm.so.6 => /lib64/libm.so.6 (0x00007f5635d89000)
libdl.so.2 => /lib64/libdl.so.2 (0x00007f5635b84000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f5635968000)
libc.so.6 => /lib64/libc.so.6 (0x00007f56355a7000)
libnssutil3.so => /lib64/libnssutil3.so (0x00007f563537a000)
libplc4.so => /lib64/libplc4.so (0x00007f5635175000)
libplds4.so => /lib64/libplds4.so (0x00007f5634f71000)
libnspr4.so => /lib64/libnspr4.so (0x00007f5634d32000)
/lib64/ld-linux-x86-64.so.2 (0x00007f5637285000)
librt.so.1 => /lib64/librt.so.1 (0x00007f5634b2a000)

但是我在lib底下 liblzma.so.5 是存在的
$ ll /lib/liblzma*
-rw-r--r--. 1 root root 1435324 6月 16 14:49 /lib/liblzma.a
-rwxr-xr-x. 1 root root 925 6月 16 14:49 /lib/liblzma.la
lrwxrwxrwx. 1 root root 16 6月 16 14:49 /lib/liblzma.so -> liblzma.so.5.2.3
lrwxrwxrwx. 1 root root 16 6月 16 14:49 /lib/liblzma.so.5 -> liblzma.so.5.2.3
-rwxr-xr-x. 1 root root 811568 6月 16 14:49 /lib/liblzma.so.5.2.3

不知道大大們有何解？

感謝

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