# Installation Error

**URL:** <https://forums.percona.com/t/installation-error/3784>\
**Category:** Other MySQL® Questions\
**Created:** [September 28, 2014, 2:25pm UTC](https://forums.percona.com/t/installation-error/3784 "2014-09-28T14:25:25Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![patelbhavin](https://avatars.discourse-cdn.com/v4/letter/p/4491bb/32.png) [@patelbhavin](https://forums.percona.com/u/patelbhavin)\
**Post date:** [September 28, 2014, 2:25pm UTC](https://forums.percona.com/t/installation-error/3784/1 "2014-09-28T14:25:25Z")

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Hi,

I am new to the percona. Till now i was using mysql and just today i got to know about percona. So i thought to take try of it on my demo webserver. I did follow the installation document for installing percona on centos 6.5 with yum. Installation gets completed with out any error but when i run below command  
/etc/init.d/mysq i get below error.  
Starting MySQL (Percona Server)… ERROR! The server quit without updating PID file (/var/lib/mysql/mydomain.com.pid). can i get help on this what is the issue. As i never had come across such error in mysql.

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<div class="post-metadata">

**Author:** ![niljoshi](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/niljoshi/32/16889_2.png) [@niljoshi](https://forums.percona.com/u/niljoshi)\
**Post date:** [October 9, 2014, 5:10am UTC](https://forums.percona.com/t/installation-error/3784/2 "2014-10-09T05:10:11Z")

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Hi,

There might be many reasons for that error. Can you please provide full error log of that server?  
how you are starting server? /etc/init.d/mysql start ?  
Also if server is already started then you can check it with “ps -aux | grep mysql” command.