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Upset because there is no help from the related answer I found here. The version of mysql on my host is 5.6.14-1.

The error occured when I start the server as below. Sorry for I can't show the hostname because it's owned by company.

sudo /etc/init.d/mysql start
Starting MySQL..The server quit without updating PID file ([FAILED]/mysql/<<hostname>>.pid).

And the error message from /var/lib/mysql/<<\hostname>>.err

131213 16:36:05 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
2013-12-13 16:36:05 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2013-12-13 16:36:05 18974 [ERROR] Fatal error: Can't change to run as user 'mysql' ;  Please check that the user exists!

2013-12-13 16:36:05 18974 [ERROR] Aborting

2013-12-13 16:36:05 18974 [Note] Binlog end
2013-12-13 16:36:05 18974 [Note] /usr/sbin/mysqld: Shutdown complete

131213 16:36:05 mysqld_safe mysqld from pid file /var/lib/mysql/<<hostname>>.pid ended

I haven't had a user name 'mysql', actually I just have only one user 'root'. I don't have a good knowledge about mySql. Could anyone help with it? Thanks in advance.

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migrated from stackoverflow.com Dec 14 '13 at 11:13

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2 Answers 2

Check /etc/passwd, is there a MySQL user? If not, re-install MySQL from your package manager.

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No. There is no mysql user... –  jjs Dec 13 '13 at 16:54
This answer should be a comment –  Jim Garrison Dec 13 '13 at 17:11
@jjs did you reinstall MySQL server? does it help? –  Howard Guo Dec 13 '13 at 19:23
up vote 0 down vote accepted

Eventually I find the answer from the following link which is good to me. http://yuanhsh.iteye.com/blog/1303801

The only thing which I have done is adding the following line into the /usr/my.cnf

user = root

I'm doubt that I never specified one user before however it worked well, why now I have to specify the user equals the only user root ? But it's not important, it works.

Thanks for the comments from everyone.

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Be careful running mysql as root - when there is a security hole with MySQL server, your system could be endangered. –  Howard Guo Dec 14 '13 at 7:48

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