libc.so.6升级后，安装程序时还是提示缺少2.15版本的libc.so.6

[一安焰]

具体问题如下：
[root@bogon Downloads]# strings /lib/libc.so.6 |grep GLIBC
GLIBC_2.0
GLIBC_2.1
GLIBC_2.1.1
GLIBC_2.1.2
GLIBC_2.1.3
GLIBC_2.2
GLIBC_2.2.1
GLIBC_2.2.2
GLIBC_2.2.3
GLIBC_2.2.4
GLIBC_2.2.6
GLIBC_2.3
GLIBC_2.3.2
GLIBC_2.3.3
GLIBC_2.3.4
GLIBC_2.4
GLIBC_2.5
GLIBC_2.6
GLIBC_2.7
GLIBC_2.8
GLIBC_2.9
GLIBC_2.10
GLIBC_2.11
GLIBC_2.12
GLIBC_PRIVATE
[root@bogon Downloads]# rpm -ivh ncurses-libs-5.9-14.20130511.el7_4.x86_64.rpm
warning: ncurses-libs-5.9-14.20130511.el7_4.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID f4a80eb5: NOKEY
error: Failed dependencies:
libc.so.6(GLIBC_2.14)(64bit) is needed by ncurses-libs-5.9-14.20130511.el7_4.x86_64
libc.so.6(GLIBC_2.15)(64bit) is needed by ncurses-libs-5.9-14.20130511.el7_4.x86_64
ncurses-base = 5.9-14.20130511.el7_4 is needed by ncurses-libs-5.9-14.20130511.el7_4.x86_64

求教大神！