Linux 下安裝mysql 服務

2021-08-19 01:38:29 字數 3206 閱讀 3713

1、這裡我將mysql安裝在/usr/local/mysql目錄裡面，也可以安裝在其他地方;

mkdir /usr/local/mysql
3、解壓並複製

tar -zxvf mysql-5.7.11-linux-glibc2.5-x86_64.tar


.gzmv mysql-5.7.11-linux-glibc2.5-x86_64/*


/usr/local/mysql/
4、建立data目錄

mkdir /usr/local/mysql/data
5、建立mysql使用者組及其使用者

groupadd mysql


useradd -r -g mysql mysql
如果已經存在，沒關係，不影響安裝

6、初始化資料

[root@localhost mysql] ./bin/mysql_install_db --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data/

2016-01-20 02:47:35 [warning] mysql_install_db is deprecated. please consider switching to mysqld --initialize

2016-01-20 02:47:45 [warning] the bootstrap log isn't empty:

2016-01-20 02:47:45 [warning] 2016-01-19t18:47:36.732678z 0 [warning] --bootstrap is deprecated. please consider using --initialize instead

2016-01-19t18:47:36.750527z 0 [warning] changed limits: max_open_files: 1024 (requested 5000)

2016-01-19t18:47:36.750560z 0 [warning] changed limits: table_open_cache: 431 (requested 2000)

7、複製配置檔案到 /etc/my.cnf

cp -a ./support-files/my-default.cnf /etc/my.cnf (選擇y)
我安裝的沒有my-default.cnf，我從別的地方複製到這裡乙個

8、mysql的服務指令碼放到系統服務中

cp -a ./support-files/mysql.server /etc/init.d/mysqld

修改my.cnf檔案

# these are commonly set, remove the # and set as required.

basedir = /usr/local/mysql

datadir = /usr/local/mysql/data

port = 3306

# server_id = .....

socket = /tmp/mysql.sock //此處因為在我之前有人在測試環境安裝過mysql,所以不知道為什麼這個位址，我寫/var/lib/mysql.sock才好使

character-set-server = utf8

# 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

9、建立in

ln -s /usr/local/mysql/  /usr/bin/
10、啟動服務

service mysqld start
11、初始化密碼

mysql5.7會生成乙個初始化密碼，在root中.mysql_secret檔案中。

[root@localhost ~]# cat /root/.mysql_secret


# password set 


for user '


root@localhost


' at 2017-03-16


00:52:34


ws;fmt7yh0cm
12、登入並修改密碼 ，如果此處一直報密碼輸入錯誤，可以在my.cnf中 寫

原創：

可以免密碼登入之後：

用修改後的密碼登入之後，再次登入，再用alter修改密碼就可以正常使用了

13、退出重新登入，完成

mysql> show databases;

+--------------------+

| database           |

+--------------------+

| information_schema |

| mysql              |

| performance_schema |

| sys                |

+--------------------+

rows in set (0.11 sec)

原創：

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