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20190109

MySQL-Remove.txt

完全清除 mySQL

1. 檢查目前安裝的mysql:
# rpm -qa | grep -i mysql
mysql-community-common-5.7.24-1.el7.x86_64
mysql-community-server-5.7.24-1.el7.x86_64
mysql-community-client-5.7.24-1.el7.x86_64
mysql-community-libs-5.7.24-1.el7.x86_64


2. 解除安裝
yum remove mysql-community-common-5.7.24-1.el7.x86_64
yum remove mysql-community-server-5.7.24-1.el7.x86_64
yum remove mysql-community-client-5.7.24-1.el7.x86_64
yum remove mysql-community-libs-5.7.24-1.el7.x86_64


3. 檢查是否已解除安裝
# rpm -qa | grep -i mysql


4. 檢查mysql相關目錄:
# find / -name mysql
/etc/selinux/targeted/active/modules/100/mysql
/etc/selinux/targeted/tmp/modules/100/mysql
/var/lib/pcp/config/pmlogconf/mysql
/var/lib/mysql
/var/lib/mysql/mysql
/usr/share/mysql

5. 刪除mysql相關目錄:
rm -rf /etc/selinux/targeted/active/modules/100/mysql
rm -rf /etc/selinux/targeted/tmp/modules/100/mysql
rm -rf /var/lib/pcp/config/pmlogconf/mysql
rm -rf /var/lib/mysql
rm -rf /var/lib/mysql/mysql
rm -rf /usr/share/mysql

6. 刪除 /etc/my.cnf
rm -rf /etc/my.cnf
無此檔案.

7. 刪除 /var/log/mysqld.log.
若/var/log/mysqld.log 沒有刪除, 則新安裝的 mysql 無法產生新密碼, 無法登入.