001、系统
[root@localhost home]# cat /etc/redhat-release CentOS Linux release 7.9.2009 (Core)
002、查看当前glibc版本
[root@localhost home]# 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.
003、从2.17升级到2.27版本
下载安装包， 下载地址：https://ftp.gnu.org/gnu/glibc/
wget https://ftp.gnu.org/gnu/glibc/glibc-2.27.tar.bz2 --no-check-certificate tar -xjvf glibc-2.27.tar.bz2 cd glibc-2.27/ mkdir build && cd build ../configure --prefix=/usr --disable-profile --enable-add-ons --with-headers=/usr/include --with-binutils=/usr/bin make make install
004、查看升级效果
strings /lib64/libc.so.6 | grep GLIBC
参考：https://zhuanlan.zhihu.com/p/559791450
标签：https,gnu,--,glibc,usr,版本,linux,2.27 From： https://www.cnblogs.com/liujiaxin2018/p/16745229.html