1、查看當前字符集：

復制代碼 代碼如下:

SHOW CHARACTER SET;

2、刪除mysql相關目錄

復制代碼 代碼如下:

rm -rf /usr/local/mysql/*安裝目錄
rm -rf /var/lib/mysql/mysql 數據庫目錄

3、重新編譯

復制代碼 代碼如下:

./configure --prefix=/usr/local/mysql --sysconfdir=/etc --localstatedir=/var/lib/mysql --with-charset=gbk --with-collation=gbk_chinese_ci --with-extra-charsets=complex
make clean
make
make install

4、安裝后工作：
停止mysql服務。

復制代碼 代碼如下:

Pkill -9 mysql
cd /var/lib/mysql/

先把master.info和relay有關的日志全部刪掉

復制代碼 代碼如下:

rm –rf *.bin
rm -rf mysql-bin.*
/usr/local/mysql/bin/mysql_install_db
chown -R mysql /var/lib/mysql
cp /usr/local/src/mysql-5.1.55/support-files/my-medium.cnf /etc/my.cnf
/usr/local/mysql/bin/mysqld_safe &
/usr/local/mysql/bin/mysqladmin -u root -p password '123456' 登錄mysql試試：
/usr/local/mysql/bin/mysql -u root -p