Can't start server : Bind on unix socket: Permissi

1:

[root@localhost mysql]# scripts/mysql_install_db 
Neither host 'localhost.localdomain' nor 'localhost' could be looked up with
/resolveip
Please configure the 'hostname' command to return a correct
hostname.
If you want to solve this at a later stage, restart this script
with the --force option

原因：需要修改/etc/hosts这个文件：

solution：echo“127.0.0.1 localhost.localdomain  localhost“>>/etc/host.

2:

071129 13:38:08 [ERROR] Can't find messagefile '/usr/local/mysql/share/english/errmsg.sys'

071129 13:38:08 [ERROR] Aborting

这是5.1.22版本以前的版本中的一个bug

遇到这个问题，可以尝试这么做，

[root@localhost mysql]# ln -s /usr/local/mysql/share/mysql/english/ /usr/local/mysql/share/english

[root@localhost mysql]#scripts/mysql_install_db --force

3：

chown -R mysql .

chgrp  -R mysql .

这样也可以解决第一个错误。

4:

[root@localhost bin]# mysql -uroot -p 
提示not the command之类的错误，
export PATH=$PATH:/usr/local/mysql/bin
就可以解决这类问题。