编译安装MySQL5.5 出现的而错误

问题
/etc/init.d/mysqld: line 276: cd: @[email protected]: No such file or directory
Starting MySQLCouldn’t find MySQL server (@[email protected]/mysqld_s[失败]
解决办法
vim /etc/init.d/mysqld
查看276行，发现是basedir的变量，查找basedir

添加basedir的目录（安装MySQL的目录）
问题
[[email protected] mysql-5.5.20]# service mysqld restart
/etc/init.d/mysqld: line 263: @[email protected]: command not found

解决办法
[[email protected] mysql-5.5.20]# sed -i ‘s/@[email protected]/DB148/’ /etc/init.d/mysqld

问题
[[email protected] mysql]# service mysqld restart
MySQL server PID file could not be found! [失败]
Starting MySQL..The server quit without updating PID file (/var/lib/mysql/DB148:.pid). [失败]

解决办法
[[email protected] mysql]# /usr/local/mysql/scripts/mysql_install_db –user=mysql –basedir=/usr/loc
al/mysql –datadir=/var/lib/mysql/（数据库的存储目录）
Installing MySQL system tables…
OK
Filling help tables…
OK

To start mysqld at boot time you have to copy
support-files/mysql.server to the right place for your system

PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER !
To do so, start the server, then issue the following commands:

/usr/local/mysql/bin/mysqladmin -u root password ‘new-password’
/usr/local/mysql/bin/mysqladmin -u root -h localhost.localdomain password ‘new-password’

Alternatively you can run:
/usr/local/mysql/bin/mysql_secure_installation

which will also give you the option of removing the test
databases and anonymous user created by default. This is
strongly recommended for production servers.

See the manual for more instructions.

You can start the MySQL daemon with:
cd /usr/local/mysql ; /usr/local/mysql/bin/mysqld_safe &

You can test the MySQL daemon with mysql-test-run.pl
cd /usr/local/mysql/mysql-test ; perl mysql-test-run.pl

Please report any problems with the /usr/local/mysql/scripts/mysqlbug script!

重启MySQL
[[email protected] mysql]# service mysqld restart MySQL server PID file could not be found! [失败] Starting MySQL.. [确定]