# Upgrade from CNS 1.2.13.2856 to 1.2.19.2979 Linux

**URL:** https://community.cambiumnetworks.com/t/upgrade-from-cns-1-2-13-2856-to-1-2-19-2979-linux/38240
**Category:** Other Management Solutions
**Created:** [August 12, 2014, 1:53pm UTC](https://community.cambiumnetworks.com/t/upgrade-from-cns-1-2-13-2856-to-1-2-19-2979-linux/38240 "2014-08-12T13:53:13Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Nicholas\_Eastman](https://d10gw3vjmzyp8.cloudfront.net/letter_avatar_proxy/v4/letter/n/91b2a8/32.png) [@Nicholas\_Eastman](https://community.cambiumnetworks.com/u/Nicholas_Eastman)
#### Post date: [August 12, 2014, 1:53pm UTC](https://community.cambiumnetworks.com/t/upgrade-from-cns-1-2-13-2856-to-1-2-19-2979-linux/38240/1 "2014-08-12T13:53:13Z")

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I am trying to upgrade our copy of CNS to the latest version, however, the installer requests we uninstall the old version first. The installer doesn’t seem to have an uninstall feature, and deleting the folder with CNS does not appear to work. How do we uninstall the old version of CNS so we can update to the newest?  
  
We currently run CentOS 6.5 x64 with no other software installed besides CNS.

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### Author: ![Jordan](https://d10gw3vjmzyp8.cloudfront.net/letter_avatar_proxy/v4/letter/j/eb9ed0/32.png) [@Jordan](https://community.cambiumnetworks.com/u/Jordan)
#### Post date: [August 12, 2014, 1:59pm UTC](https://community.cambiumnetworks.com/t/upgrade-from-cns-1-2-13-2856-to-1-2-19-2979-linux/38240/2 "2014-08-12T13:59:25Z")

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There is an uninstaller located in the installation directory. Execute it to launch the uninstall wizard and completely uninstall CNSS.  
  
If installed in the default location:  
/opt/cnsserver/uninstall