linux--mysql 8.0.16--裸機安裝

 參考： https://www.cnblogs.com/warmsmile/p/10210739.html

https://www.cnblogs.com/yg_zhang/p/10424926.html

 

1.刪除自帶的mysql

rpm -qa | grep mysql
rpm -e --nodeps mysql-libs-5.1.73-5.el6_6.x86_64

 

rpm -qa | grep mariadb
####   mariadb-libs-5.5.60-1.el7_5.x86_64
rpm -e --nodeps mariadb-libs-5.5.60-1.el7_5.x86_64

 

 2.下載tar包 

wget https://cdn.mysql.com//Downloads/MySQL-8.0/mysql-8.0.16-linux-glibc2.12-x86_64.tar

 3.解壓tar包

　　注意這裏是*.tar文件，解壓時和*.tar.gz包有所區別，須要解壓兩次 第一次解壓出*.tar.xz，在解壓*.tar.xz

　　tar -xvf mysql-8.0.16-linux-glibc2.12-x86_64.tar

 

tar xvJf mysql-8.0.16-linux-glibc2.12-x86_64.tar.xz

若是報錯以下，安裝xz，在解壓就正常了

yum -y  install xz

 

vim /etc/my.cnf

 

[client]
port=3306
socket=/tmp/mysql/mysql.sock

[mysqld]
port=3306
user=mysql
socket=/tmp/mysql/mysql.sock
basedir=/data/mysql-8.0.16
datadir=/data/mysql-8.0.16/data
log-error=error.log

transaction_isolation = READ-COMMITTED
character-set-server = utf8mb4
#collation-server = utf8mb4_general_ci
collation-server = utf8mb4_bin
lower_case_table_names = 1

#skip-grant-tables

#datadir=/var/lib/mysql
#socket=/var/lib/mysql/mysql.sock
#user=mysql
# Disabling symbolic-links is recommended to prevent assorted security risks
symbolic-links=0

[mysqld_safe]
log-error=/tmp/mysql/log/mysqld.log
pid-file=/tmp/mysql/run/mysqld/mysqld.pid

#log-error=/var/log/mysqld.log
#pid-file=/var/run/mysqld/mysqld.pid

 

 

groupadd mysql
useradd -g mysql mysql

mkdir -p /tmp/mysql/log

touch /tmp/mysql/log/mysqld.log

chown -R mysql:mysql /tmp/mysql
chown -R mysql:mysql /data/mysql-8.0.16
chmod -R 755 /tmp/mysql /data/mysql-8.0.16

 

# chown -R root:root /tmp/mysql
# chown -R root:root /data/mysql-8.0.16
# chmod -R 755 /tmp/mysql /data/mysql-8.0.16

 

 

 ./bin/mysqld --initialize --user=mysql --basedir=/data/mysql-8.0.16/ --datadir=/data/mysql-8.0.16/data/

 

報錯解決，安裝依賴   

yum install -y libaio

 

還有報錯，安裝依賴

 yum -y install numactl

 

 在執行初始化，成功

 

啓動 mysql

cp /data/mysql/support-files/mysql.server /etc/init.d/mysql

 

# ./support-files/mysql.server start

service mysql start

# service mysqld start

 

7.初始化密碼

初始化時並無出現 初始密碼，所以須要使用免密碼登錄，修改密碼。

配置 skip-grant-tables,可使用免密碼登陸（正式環境需禁用）

mysql -u root -p 回車，不輸入密碼再回車

1.清空密碼

use mysql；

update user set authentication_string='' where user='root';  

2.退出以後禁用免密碼登錄 ，註釋 skip-grant-tables，去掉此配置

3.空密碼登陸，在第一部清空了密碼

mysql -u root -p  

輸入密碼是直接回車。

修改密碼以下，免密碼登沒法執行修改

ALTER user 'root'@'localhost' IDENTIFIED BY '123456';

 

遠程鏈接設置：

新版的的mysql版本已經將建立帳戶和賦予權限的方式分開了
一、建立帳戶　　create user 'root'@'%' identified by '$$123456' ;  

二、賦予權限　　grant all privileges on *.* to 'root' @'%' ;

三、刷新權限　　flush  privileges ;

 

使用navicat視圖工具鏈接報錯解決：

mysql8 以前的版本中加密規則是mysql_native_password,

而在mysql8以後,加密規則是caching_sha2_password,

解決問題方法有兩種,

第一種是升級navicat驅動,

第二種是把mysql用戶登陸密碼加密規則還原成mysql_native_password. 

 這裏使用第二種方式實現： 

ALTER USER 'root'@'%' IDENTIFIED BY '$$123456' PASSWORD EXPIRE NEVER; #修改加密規則 
ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '$$123456'; #更新一下用戶的密碼 
FLUSH PRIVILEGES; #刷新權限 

mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY '$$123456' PASSWORD EXPIRE NEVER;
Query OK, 0 rows affected (0.02 sec)

mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '$$123456';
Query OK, 0 rows affected (0.02 sec)

mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.01 sec)

mysql> select host, user, authentication_string, plugin from user ;
+-----------+------------------+------------------------------------------------------------------------+-----------------------+
| host | user | authentication_string | plugin |
+-----------+------------------+------------------------------------------------------------------------+-----------------------+
| % | root | $A$005$i?Iex(2/2O!YOM?jyuiWZ2I0CI1H15d5GFB6fvgC/3UvjcEIxvNZDOy/UE2 | caching_sha2_password |
| localhost | mysql.infoschema | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED | caching_sha2_password |
| localhost | mysql.session | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED | caching_sha2_password |
| localhost | mysql.sys | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED | caching_sha2_password |
| localhost | root | *F0D06DBF9E3EAF787BAEA71C2EAC5540B0218A2B | mysql_native_password |
+-----------+------------------+------------------------------------------------------------------------+-----------------------+
5 rows in set (0.00 sec)

mysql> ALTER USER 'root'@'%' IDENTIFIED BY '$$123456' PASSWORD EXPIRE NEVER;
Query OK, 0 rows affected (0.08 sec)

mysql> ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY '$$123456';
Query OK, 0 rows affected (0.01 sec)

mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.01 sec)

mysql> select host, user, authentication_string, plugin from user ;
+-----------+------------------+------------------------------------------------------------------------+-----------------------+
| host | user | authentication_string | plugin |
+-----------+------------------+------------------------------------------------------------------------+-----------------------+
| % | root | *F0D06DBF9E3EAF787BAEA71C2EAC5540B0218A2B | mysql_native_password |
| localhost | mysql.infoschema | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED | caching_sha2_password |
| localhost | mysql.session | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED | caching_sha2_password |
| localhost | mysql.sys | $A$005$THISISACOMBINATIONOFINVALIDSALTANDPASSWORDTHATMUSTNEVERBRBEUSED | caching_sha2_password |
| localhost | root | *F0D06DBF9E3EAF787BAEA71C2EAC5540B0218A2B | mysql_native_password |
+-----------+------------------+------------------------------------------------------------------------+-----------------------+
5 rows in set (0.00 sec)

mysql>

 至此，安裝完成