Upgrade Nagios Core 3.5.1 to 4.4.5

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Upgrade Nagios Core 3.5.1 to 4.4.5

Postby urbancom » Fri Feb 14, 2020 1:30 pm


My current Nagios Core 3.5.1 installation is installed in /etc/nagios. How can I upgrade to 4.4.5 when it installs to /usr/local/nagios. I have tried to just move the Nagios 3.5.1 files after the 4.4.5 install and I get this when I try and verify the nagios.cfg:

Website: https://www.nagios.org
Reading configuration data...
Warning: external_command_buffer_slots is deprecated and will be removed. All commands are always processed upon arrival
Warning: command_check_interval is deprecated and will be removed. Commands are always handled on arrival
Read main config file okay...
WARNING: The normal_check_interval attribute is deprecated and will be removed in future versions. Please use check_interval instead.
WARNING: The retry_check_interval attribute is deprecated and will be removed in future versions. Please use retry_interval instead.
Error: Template 'ORG-Urbancom' specified in host definition could not be not found (config file '/usr/local/nagios/etc/Default_collector/hosts.cfg', starting on line 7875)
Error: Invalid max_check_attempts value for host '5320 building elevator camera'
Error: Could not register host (config file '/usr/local/nagios/etc/Default_collector/hosts.cfg', starting on line 5217)
Error processing object config files!

Does anyone have a step by step for an upgrade with this environment? BTW I have nconf installed on the same server
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Re: Upgrade Nagios Core 3.5.1 to 4.4.5

Postby lmiltchev » Fri Feb 14, 2020 2:37 pm

Here's a guide on upgrading Nagios Core:


Having said that, you need to fix your configuration errors first, before even attempting an upgrade...
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