cd /tmp
wget http://ftp.gnu.org/gnu/glibc/glibc-2.14.tar.gz
#extract
tar -xzvf glibc-2.14.tar.gz
#install
cd glibc-2.14
mkdir build # build folder "build" under "glibc-2.14
cd build
../configure --prefix=/opt/glibc-2.14 #config glibc and set glibc-2.14 install path
make && make install #make install glibc-2.14
#re-build glibc link
rm -rf /lib64/libc.so.6 #delete libc.so.6 first
ln -s /opt/glibc-2.14/lib/libc-2.14.so /lib64/libc.so.6
mention
#Delete libc.so.6 may cause system command unstable, we can use below to fix it:
LD_PRELOAD=/opt/glibc-2.14/lib/libc-2.14.so ln -s /opt/glibc-2.14/lib/libc-2.14.so /lib64/libc.so.6
#Or if that way fail, we can roll back:
LD_PRELOAD=/lib64/libc-2.12.so ln -s /lib64/libc-2.12.so /lib64/libc.so.6
