Cannot upgrade Splunk 7.x to Splunk 8.x

[token2]

I'm running into an issue where as a domain admin I cannot upgrade Splunk 7.2.9.1 to Splunk 8.0.3. I was able to upgrade 7.2.9.1 to 7.3.5, but still cannot upgrade from 7.3.5 to 8.0.3. The GUI (Windows) reports back after going through a lot of the steps, "Splunk Enterprise Setup Wizard ended prematurely because of an error. Your system has not been modified..."

[token2]

Windows version is 2016. It goes through all of the motions, and then rolls back the actions.

[token2 · Accepted solution]

The issue is a bug Splunk is fixing- the authentication.conf needed to be saved as ANSI to allow the upgrade to proceed.

[gcusello]

Hi @token2,
what is your Windows version?
Splunk 8.0.3 is certified only on Windows 10, Windows Server 2016, 2019.

Ciao.
Giuseppe

[gcusello]

Hi @token2,
some additional questions (someone stupid!):

• is it a stand alone server or a different one?
• is it installed on a local device or a network device?
• is there sufficient disk space on the device?
• are there an antivirus or other security systems?
• did you tried to stop Splunk before update?

It's a very strange behaviour I didn't reported any situations like this.
probably the easy solution is to open a ticket to Splunk Support.

Ciao.
Giuseppe