Confluence 7.0.2 to 7.3.1

[charleslcso]

I'm running Confluence 7.0.2 on OS X, with Java 1.8.0_212. 

I'm trying to upgrade it to 7.3.1.

I tried running new Confluence v7.3.1 instance after copying all the custom config from 7.0.2, started it, but then when specifying the old database it says data already exists. I don't want to overwrite it!

Then I followed this article: https://confluence.atlassian.com/doc/upgrading-confluence-4578.html and download the .bin installer. Ran it and came across this error: 

Unpacking JRE ...

Starting Installer ...

./atlassian-confluence-7.3.1-x64.bin: line 664: /atlassian-confluence-7.3.1-x64.bin.37559.dir/jre/bin/java: cannot execute binary file

What am I to do?

[Thomas Deiler · Accepted solution]

Dear @charleslcso ,

the normal upgrade process of Confluence works like this:

1. backup data including attachments to files system
2. shut down Confluence
3. save old CONFLUENCE_HOME folder (rename, so that it does not get overwritten)
4. install new Confluence version
5. start new Confluence
6. use the setup wizard (same db credentials)
7. restore from dump (data saved at 1.)
8. say yes to overwrite.
9. done

Confluence does data migration while restoring the dump.

So long

Thomas

[charleslcso]

Thank you @Thomas Deiler . So during Step 6 I should create a new DB first, then Step 7 do the dump, right?

[charleslcso]

Got it. I need to create a new database to proceed. 

[Thomas Deiler]

You can also reuse the old DB. Confluence can handle this.