Knowledge Base .: Why do I get an error KB cannot establish a database connection?

This article applies to the following KnowledgeBox Hardware:

All – it is not a definitive fix for this problem but has resolved the issue quickly in some cases.

Error Message / Symptoms:

Error message at KnowledgeBox startup: KB cannot establish a database connection - Please contact the Administrator

Solution:
Please read the next two paragraph headings to see which applies to you.

If you are a school administrator or ICT coordinator:

Please call customer services on 0800 376 8376 who will help decide the best course of action for you.

If you are a KnowledgeBox Engineer:

You will need a monitor and keyboard attached or a remote telnet connection using the telnet command or tools such as Putty. Make sure no person is trying to connect to KnowledgeBox before you begin.

1. Login to the KnowledgeBox console as "root"

2. Change directory to /home/knowledgebox/init.d

3. From the /home/knowledgebox/init.d# prompt run ./rc.knowledgebox stop once this command is complete you will be returned to the /home/knowledgebox/init.d# prompt.

4. From the # prompt enter the command init 0, this should power off the KnowledgeBox within 60 seconds. If the machine hasn't powered off it will have hung most likely, in which case you will have to press and hold the power button for more than 7 seconds for the unit to power off. Release the power button only once powered off.

5. After waiting for 20 seconds or so, power the KnowledgeBox back on - It should work as normal once it has completed the start-up process.

If this is not successful please refer to the following article for another possible resolution to the problem.

KB_cannot_establish_a_database_connection