今天安裝mysql5.6.12安裝有些許報錯，我在這裏貼出來，給大家分享一下：
安裝完成後，初始化數據庫報錯如下：
[root@localhost mysql]# ./scripts/mysql_install_db --user=mysql
-bash: ./scripts/mysql_install_db: /usr/bin/perl: bad interpreter: No such file or
directory
貌似提示註釋器錯誤，沒有/usr/bin/perl文件或者檔案，解決辦法（安裝perl跟perl-devel即可）：
執行 yum -y install perl perl-devel
後在初始化數據庫即可。
啓動mysql報錯如下：
[root@localhost mysql]# /etc/init.d/mysqld start
Starting MySQL.............. ERROR! The server quit without updating PID file (/var/lib/mysql/localhost.localdomain.pid).
查看日誌文件有以下錯誤日誌:
2013-08-08 13:07:44 21805 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.user' doesn't exist
130808 13:07:45 mysqld_safe mysqld from pid file /var/lib/mysql/localhost.localdomain.pid ended
解決辦法：cp ./support-files/my-default.cnf /etc/my.cnf 後再重啓即可
根據度孃的結果，有大蝦說是機器內存的問題，我在這裏貼出其解決方案：
查看日誌文件，看看有什麼提示！
生成my.cnf
sudo cp support-files/my-medium.cnf /etc/my.cnf
#下面是安裝使用過程中出現的一些問題及解決方法
一．不能用root用戶運程連接mysql
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爲MySQL的root用戶添加遠程訪問權限：
[root@localhost ~]# mysql -uroot -p
Enter password: （此處輸入密碼登錄）
Welcome to the MySQL monitor. Commands end with ; or /g.
Your MySQL connection id is 35 to server version: 5.0.22
Type 'help;' or '/h' for help. Type '/c' to clear the buffer.
mysql> grant all on *.* to root@'%' identified by 'your_password';
Query OK, 0 rows affected (0.01 sec)
mysql> exit
Bye
[root@localhost ~]# /etc/init.d/mysqld restart
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二．Mysqld啓動失敗
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1） mysql相關進程僵死
查找mysql相關進程：sudo ps –A ｜ grep mysql
殺死相關進程：sudo kill -9 process_id
重啓mysqld：sudo /etc/init.d/mysqld restart
2）優化後出現
Starting MySQL..The server quit without updating PID file ([失敗]ocal/mysql/data/localhost.localdomain.pid).
這個問題主要出現的原因是因爲my.cnf的配置過於高，當前的機器無法滿足，導致了MYSQL啓動失敗，估計以後也會有很多人遇到這個問題，網上的標準是：
如果內存是128M，則複製/usr/local/share/mysql/my-medium.cnf爲/etc/my.cnf
# This is for a system with little memory (32M - 64M) where MySQL plays
# an important part, or systems up to 128M where MySQL is used together with
# other programs (such as a web server)
如果內存是512M，則複製/usr/local/share/mysql/my-large.cnf爲/etc/my.cnf
# This is for a large system with memory = 512M where the system runs mainly
# MySQL.
如果內存是1-2G，則複製/usr/local/share/mysql/my-huge.cnf爲/etc/my.cnf
# This is for a large system with memory of 1G-2G where the system runs mainly
# MySQL.
實際上需要在my-medium.cnf的基礎上進行修改，增強部分配置，不能直接使用my-large.cnf和my-huge.cnf。
除非你的服務器配置相當高。
3）./mysql-bin.index not found
權限問題修改數據目錄的權限及/usr/local/mysql/bin/mysqld 的權限。
4）Error Code : 1418
This function has none of DETERMINISTIC, NO SQL, or READS SQL DATA in its declaration and binary logging is enabled (you *might* want to use the less safe log_bin_trust_function_creators variable)
(0 ms taken)
解決方法如下：
1. mysql> SET GLOBAL log_bin_trust_function_creators = 1;
2. 在my.ini(linux下爲my.conf)文件中 [mysqld] 標記後加一行內容爲 log-bin-trust-function-creators=1
http://blog.chinaunix.net/space. ... blog&id=2435868