Linux下yum安裝MySQL yum安裝MySQL指定版本
阿新 • • 發佈：2018-11-03
轉載：https://blog.csdn.net/jerome_s/article/details/52883234
yum 安裝MySQL1. 檢查安裝情況
檢視有沒有安裝過： yum list installed MySQL* （有存在要解除安裝yum remove MySQL*） rpm -qa | grep mysql*
檢視有沒有安裝包： yum list mysql*
2. 安裝 MySQL
安裝 MySQL 客戶端： yum -y install mysql
安裝 MySQL 伺服器端： yum -y install mysql-server mysql-devel
3. 配置和啟動
設定開機啟動：
停止 MySQL 服務： service mysqld stop
4. MySQL 登陸等許可權設定
登入 MySQL 資料庫： mysq -u root password 123456
首次使用建立root管理員和密碼： （mysql -u root -p輸入密碼即可？） mysql -u root; use mysql ; update user set password=password("123456") where user="root"; flush privileges;
忘記密碼： service mysqld stop; mysqld_safe --user=root --skip-grant-tables; 這一步驟執行的時候不會出現新的命令列，你需要重新開啟一個視窗執行下面的命令 mysql -u root; use mysql ; update user set password=password("123456") where user="root"; flush privileges;
如果需要外網可以訪問需要再做如下設定： 授權使用者可以從遠端登陸 grant all PRIVILEGES on *.* to root @'%' identified by 'pwd123 '; flush privileges ;
5. 遠端訪問，開放防火牆的埠號 MySQL
一般開發測試我直接把防火牆關閉，生產的開發對應埠即可：
| 1 2 3 4 5 6 |
su
root
service iptables stop
#關閉防火牆
service iptables status
#驗證是否關閉
chkconfig iptables off
#關閉防火牆的開機自動執行
chkconfig –list |
grep
iptables
#驗證防火牆的開機自動執行
vim
/etc/sysconfig/selinux
# 禁用selinux，將SELINUX=disabled
|
6. Linux MySQL 的幾個重要目錄
資料庫目錄 /var/lib/mysql/ 配置檔案 /usr/share /mysql（mysql.server命令及配置檔案） 相關命令 /usr/bin（mysqladmin mysqldump等命令） 啟動指令碼 /etc/rc.d/init.d/（啟動指令碼檔案mysql的目錄）
7. 刪除 MySQL 資料庫
如果使用的是 yum 安裝的 mysql，需要刪除的話，就使用如下命令： yum -y remove mysql* 然後將 /var/lib/mysql資料夾下的所有檔案都刪除乾淨， 最後再重新執行上面的安裝步驟。
yum 安裝 MySQL 指定版本
預設yum只能安裝mysql 5.1，我們可以自己配置通過yum安裝5.6或者其他版本。
1. 檢視系統裡面有沒有mysql 的repo（可以參考上面第一步解除安裝）
yum repolist all | grep mysql
2. 如果沒有發現，則需要配置repo
只能有一個是 enabled=1的，其他的都得enabled=0。 vim /etc/yum.repos.d/mysql-community.repo 輸入如下內容
[mysql-connectors-community]3. 再看看是否存在 MySQL 的 repo
name=MySQL Connectors Community
baseurl=http://repo.mysql.com/yum/mysql-connectors-community/el/6/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:/etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
[mysql-tools-community]
name=MySQL Tools Community
baseurl=http://repo.mysql.com/yum/mysql-tools-community/el/6/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:/etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
# Enable to use MySQL 5.5
[mysql55-community]
name=MySQL 5.5 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.5-community/el/6/$basearch/
enabled=0
gpgcheck=1
gpgkey=file:/etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
# Enable to use MySQL 5.6
[mysql56-community]
name=MySQL 5.6 Community Server
baseurl=http://repo.mysql.com/yum/mysql-5.6-community/el/6/$basearch/
enabled=1
gpgcheck=1
gpgkey=file:/etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
# Note: MySQL 5.7 is currently in development. For use at your own risk.
# Please read with sub pages: https://dev.mysql.com/doc/relnotes/mysql/5.7/en/
[mysql57-community-dmr]
name=MySQL 5.7 Community Server Development Milestone Release
baseurl=http://repo.mysql.com/yum/mysql-5.7-community/el/6/$basearch/
enabled=0
gpgcheck=1
gpgkey=file:/etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
yum repolist enabled | grep mysql 可以看到已經有了。
4. 簽名
vim /etc/pki/rpm-gpg/RPM-GPG-KEY-mysql 寫入如下內容
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Version: GnuPG v1.4.9 (SunOS)
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=443I
-----END PGP PUBLIC KEY BLOCK-----
yum install mysql-community-server -y
6. 啟動
service mysqld start
其他操作可以參考上面第一節的介紹。