Problem Upgrading Jira 6.2 to 6.3.x

Question

When I try to use the binary installer i get the following error, I have JIRA 6.2 installed, Is there anyway to make it work?

$ sudo ./atlassian-jira-6.3.8-x64.bin 
Unpacking JRE ...
Starting Installer ...
 
This will install JIRA 6.3.8 on your computer.
OK [o, Enter], Cancel [c]
o
Choose the appropriate installation or upgrade option.
Please choose one of the following:
Express Install (use default settings) [1], Custom Install (recommended for advanced users) [2], Upgrade an existing JIRA installation [3, Enter]
3
Existing installation directory:
[/data/opt/atlassian/jira]
 
Sorry, we are unable to automatically upgrade your JIRA installation as it is not version 4.3 (or later)
For more information see our documentation at the following URL:
http://docs.atlassian.com/jira/docs-063/Upgrading+JIRA+Manually
Finishing installation ...

tcarlander · Answer

Is there any way of debugging this to see why it thinks it is not a 6.2 installation?

tcarlander · Answer

Yes. It is where Jira runs from, and there is no other Jira on the system.

Nic Brough -Adaptavist- · Answer

It's not finding a valid installation of 6.2 in /data/opt/atlassian/JIRA - are you sure that's where your 6.2 was installed?