mysql-8.0.13-linux-glibc2.12-x86_64.tar.xz 安裝步驟

一、解壓mysql-8.0.13-linux-glibc2.12-x86_64.tar.xz到一個文件夾中，隨便一個文件夾，後面須要轉移的。

# tar -xvf mysql-8.0.13-linux-glibc2.12-x86_64.tar.xz

若是報以下錯誤，請安裝組件

[root@iZ8vbf0nw945emer2xmpdhZ soft]# tar -xvf mysql-8.0.13-linux-glibc2.12-x86_64.tar.xz
tar (child): xz: Cannot exec: No such file or directory
tar (child): Error is not recoverable: exiting now
tar: Child returned status 2
tar: Error is not recoverable: exiting now
[root@iZ8vbf0nw945emer2xmpdhZ soft]# yum install -y xz 

二、將解壓的文件重命名mysql，並移動到/usr/local目錄下　

# mv mysql-8.0.13-linux-glibc2.12-x86_64 mysql # mv mysql /usr/local/

 三、進入到/usr/local目錄下，建立用戶和用戶組並受權

# cd /usr/local/
# groupadd mysql
# useradd -r -g mysql mysql
# cd mysql/ #注意：進入mysql文件下受權全部的文件
# chown -R mysql:mysql ./

 四、再/usr/local/mysql目錄下，建立data文件夾

# mkdir data

　五、初始化數據庫，並會自動生成隨機密碼，記下等下登錄要用 

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

六、修改/usr/local/mysql當前目錄得用戶 

# chown -R root:root ./
# chown -R mysql:mysql data

七、# cp support-files/my-default.cnf /etc/my.cnf 

複製過去，其實也就是空白頁，一開始沒有my-default.cnf這個文件，能夠用# touch my-default.cnf命令建立一個，並配置權限 # chmod 777 ./my-default.cnf

# cd support-files/
# touch my-default.cnf
# chmod 777 ./my-default.cnf 
# cd ../
# cp support-files/my-default.cnf /etc/my.cnf 

八、配置my.cnf 

# vim /etc/my.cnf 

[mysqld]
 
# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M
 
# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin
 
# These are commonly set, remove the # and set as required.
basedir = /usr/local/mysql
datadir = /usr/local/mysql/data
socket = /tmp/mysql.sock
log-error = /usr/local/mysql/data/error.log
pid-file = /usr/local/mysql/data/mysql.pid
tmpdir = /tmp
port = 3306
#lower_case_table_names = 1
# server_id = .....
# socket = .....
#lower_case_table_names = 1
max_allowed_packet=32M
default-authentication-plugin = mysql_native_password
#lower_case_file_system = on
#lower_case_table_names = 1
log_bin_trust_function_creators = ON
# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M 
 
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

若是後期mysql運行報錯，能夠直接到log-error = /usr/local/mysql/data/error.log目錄下直接查看錯誤日誌

命令:cat /usr/local/mysql/data/error.log

九、開機自啓，進入/usr/local/mysql/support-files進行設置

# cd support-files/
# cp mysql.server /etc/init.d/mysql 
# chmod +x /etc/init.d/mysql

十、註冊服務

# chkconfig --add mysql

若是命令沒有，在須要處理chkconfig

# rpm -aq |grep chkconfig
# export PATH=/sbin:$PATH
# chkconfig
# echo $PATH
# PATH="$PATH":/sbin
# echo $PATH

十一、查看是否成功

 十二、etc/ld.so.conf要配置路徑，否則報錯

# vim /etc/ld.so.conf
 
添加以下內容:
/usr/local/mysql/lib

1三、配置環境變量

# vim /etc/profile
# source /etc/profile
 
添加以下內容：
#MYSQL ENVIRONMENT
export PATH=$PATH:/usr/local/mysql/bin:/usr/local/mysql/lib

1四、登錄，這裏輸入上面第6步隨機生成得密碼，細心點輸入，沒有顯示的，登錄成功如圖所示

 

 你可能由於丟失套接字文件而不能鏈接（如上截圖錯誤），你能夠簡單地經過重啓服務器從新建立獲得它。由於服務器在啓動時從新建立它。

1五、開啓Navicat遠程鏈接

mysql> use mysql;  #若是報如下該錯誤
ERROR 1820 (HY000): You must reset your password using ALTER USER statement before executing this statement.
mysql> ALTER USER USER() IDENTIFIED BY 'root';  #解決方式

　而後繼續下面操做，沒有錯誤也是繼續下面操做

# mysql -uroot -p #進入數據庫
> use mysql;#進入數據庫
> select host, user, authentication_string, plugin from user;#查看用戶信息
> GRANT ALL ON *.* TO 'root'@'%';#受權root用戶能夠遠程登錄
> flush privileges;#當即生效
> ALTER USER 'root'@'%' IDENTIFIED WITH mysql_native_password BY 'Kuaigui2019!';#修改root用戶密碼
> FLUSH PRIVILEGES;#當即生效
> exit;#退出
# service mysql restart#重啓mysql服務

　　

 

 1六、navicat鏈接成功