Linux下Mysql5 7的安裝

wget

# 解壓

tar -xvf mysql-5.7.22-linux-glibc2.12-x86_64.tar.gz

mv mysql-5.7.22-linux-glibc2.12-x86_64 /usr/local/

mv /usr/local/mysql-5.7.22-linux-glibc2.12-x86_64 /usr/local/mysql

mkdir /usr/local/mysql/data

# mysql使用者組

groupadd mysql

useradd mysql -g mysql

chown -r mysql.mysql /usr/local/mysql

/usr/local/mysql/bin/mysql_install_db --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data

2018-07-14 06:40:32 [warning] mysql_install_db is deprecated. please consider switching to mysqld --initialize

2018-07-14 06:40:32 [error]   child process: /usr/local/mysql/bin/mysqldterminated prematurely with errno= 32
2018-07-14 06:40:32 [error]   failed to execute /usr/local/mysql/bin/mysqld --bootstrap --datadir=/usr/local/mysql/data --lc-messages-dir=/usr/local/mysql/share --lc-messages=en_us --basedir=/usr/local/mysql
-- server log begin --
-- server log end --

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

/usr/local/mysql/bin/mysqld: error while loading shared libraries: libnuma.so.1: cannot open shared object file: no such file or directory

yum install libaio

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

[mysqld]

datadir=/usr/local/mysql/data
basedir=/usr/local/mysql
socket=/tmp/mysql.sock
user=mysql
port=3306
character-set-server=utf8
# 取消密碼驗證
skip-grant-tables
# disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0
# skip-grant-tables
[mysqld_safe]
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid

# 將mysql加入服務

cp /usr/local/mysql/support-files/mysql.server /etc/init.d/mysql

chkconfig mysql on

service mysql start

# 登入（由於/etc/my.cnf中設定了取消密碼驗證，所以此處密碼任意）

/usr/local/mysql/bin/mysql -u root -p

use mysql;

update user set authentication_string=password('你的密碼') where user='root';

flush privileges;
exit;

10、登入再次設定密碼（不知道為啥如果不再次設定密碼就操作不了資料庫了）

/usr/local/mysql/bin/mysql -u root -p

alter user 'root'@'localhost' identified by '修改後的密碼';

exit;

/usr/local/mysql/bin/mysql -u root -p

use mysql;

update user set host='%' where user = 'root';
flush privileges;
exit;

ln -s /usr/local/mysql/bin/mysql /usr/bin

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