# rpm -qa | grep mariadb
# rpm -e --nodeps mariadb-libs-5.5.37-1.el7_0.x86_64 包名是上一条查询得知

# cd /usr/local/src/
# wget http://download.savannah.gnu.org/releases/libunwind/libunwind-1.1.tar.gz
# wget http://gperftools.googlecode.com/files/gperftools-2.5.tar.gz
# wget http://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.x.tar.gz

# tar zxvf libunwind-1.1.tar.gz
# cd libunwind-1.1
# ./configure
# make
# make install

# cd ..
# tar zxvf gperftools-2.1.tar.gz
# cd gperftools-2.1
# ./configure
# make
# make install
# echo "/usr/local/lib" > /etc/ld.so.conf.d/usr_local_lib.conf
# ldconfig

# cd ..
# tar zxvf mysql-5.7.x.tar.gz
# cd mysql-5.7.x

# cmake . -LH | more

rm -rf CMakeCache.txt

＃ cmake -DCMAKE_INSTALL_PREFIX=/usr/local/mysql \
 -DMYSQL_DATADIR=/data/mysql \
 -DSYSCONFDIR=/etc \
 -DEXTRA_CHARSETS=all \
 -DDEFAULT_CHARSET=utf8 \
 -DDEFAULT_COLLATION=utf8_general_ci \
 -DWITH_INNOBASE_STORAGE_ENGINE=1 \
 -DENABLED_LOCAL_INFILE=1 \
 -DMYSQL_UNIX_ADDR=/dev/shm/mysql.sock \
 -DMYSQL_TCP_PORT=3306 \
 -DMYSQL_USER=mysql \
 -DWITH_DEBUG=0 \
 -DDOWNLOAD_BOOST=1 \
 -DWITH_BOOST=/usr/local/boost
# make
# make install
 ```
 
 更改权限
 ```
# chmod 755 /var/lib/mysql
# cd /usr/local/mysql
# chown -R mysql:mysql .

/usr/local/mysql/bin/mysqld --initialize --basedir=/usr/local/mysql --datadir=/data/mysql --user=mysql --explicit_defaults_for_timestamp=1

# cp support-files/my-default.cnf /usr/local/mysql/my.cnf