Cent OS 6.8 升级glibc 2.12->2.17

1、首先安装必要的库：

gcc

2、查看现有glibc版本：

#ldd --version

ldd (GNU libc) 2.12

Copyright (C) 2010 Free Software Foundation, Inc.

This is free software; see the source for copying conditions.  There is NO

warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Written by Roland McGrath and Ulrich Drepper.

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3、查看现有系统包中能安装的glibc版本：

# strings /lib64/libc.so.6 |grep GLIBC_

GLIBC_2.2.5

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

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可见，Centos6能够支持的最高版本也就是2.12了，所以，必须要到官网下载2.17版本手动进行安装了。

4、安装Glibc2.17：

# wget https://ftp.gnu.org/gnu/glibc/glibc-2.17.tar.gz

# tar –zxvf glibc-2.17.tar.gz

# cd glibc-2.17

# mkdir build

# cd build

# ../configure --prefix=/usr --disable-profile --enable-add-ons --with-headers=/usr/include --with-binutils=/usr/bin

# make

# make install

5、查看安装后的glibc版本：

# ldd --version

ldd (GNU libc) 2.17

Copyright (C) 2012 Free Software Foundation, Inc.

This is free software; see the source for copying conditions.  There is NO

warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Written by Roland McGrath and Ulrich Drepper.

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PS：建议在升级glibc之前，务必要备份好重要数据。