# Percona 5.5 Installation on Centos 6 - Package Not Signed

**URL:** <https://forums.percona.com/t/percona-5-5-installation-on-centos-6-package-not-signed/1650>\
**Category:** Other MySQL® Questions\
**Created:** [August 16, 2011, 8:47am UTC](https://forums.percona.com/t/percona-5-5-installation-on-centos-6-package-not-signed/1650 "2011-08-16T08:47:28Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![gtuhl](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/gtuhl/32/852_2.png) [@gtuhl](https://forums.percona.com/u/gtuhl)\
**Post date:** [August 16, 2011, 8:47am UTC](https://forums.percona.com/t/percona-5-5-installation-on-centos-6-package-not-signed/1650/1 "2011-08-16T08:47:28Z")

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I’m unable to install Percona 5.5 on Centos6 without using --nogpgcheck:

rpm -Uhv [http://www.percona.com/downloads/percona-release/percona-rel](http://www.percona.com/downloads/percona-release/percona-rel) ease-0.0-1.x86\_64.rpm  
yum install Percona-Server-client-55 Percona-Server-server-55  
…lots of output…  
Package Percona-Server-client-55-5.5.14-rel20.5.149.rhel6.x86\_64.rpm is not signed

I have a /etc/yum.repos.d/Percona.repo file that looks correct and also have a /etc/pki/rpm-gpg-RPM-GPG-KEY-percona file.

If I force it in with --nogpgcheck it conflicts with mysql-libs which a bunch of core packages depend on so the installation ends up looking like this (on a clean machine with a fresh Centos 6 install):

yum remove mysql-libs  
yum install --nogpgcheck Percona-Server-client-55 Percona-Server-server-55  
yum install --nogpgcheck mysql-libs cronie cronie-anacron crontabs postfix sysstat webalizer

Is running Percona 5.5 on Centos 6 recommended at this time?

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**Author:** ![cgrello](https://avatars.discourse-cdn.com/v4/letter/c/85f322/32.png) [@cgrello](https://forums.percona.com/u/cgrello)\
**Post date:** [August 20, 2011, 11:07pm UTC](https://forums.percona.com/t/percona-5-5-installation-on-centos-6-package-not-signed/1650/2 "2011-08-20T23:07:47Z")

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Just ran into the same issue. There’s an easy solution – install Percona-Server-share-compat – which includes mysql-libs and will resolve the conflict.

- Chris

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**Author:** ![gtuhl](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/gtuhl/32/852_2.png) [@gtuhl](https://forums.percona.com/u/gtuhl)\
**Post date:** [November 15, 2011, 3:18pm UTC](https://forums.percona.com/t/percona-5-5-installation-on-centos-6-package-not-signed/1650/3 "2011-11-15T15:18:29Z")

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Never did update this, but thanks Chris. That did resolve my issue.