Deploy Jenkins.war - i lost jebs and configuration

[Michal Pieniak]

Hello,

This is weird but from the beginning... 

I have Jenkins Version 1.572 and i have to upgrade it to 2.3, 2.4, 2.1 or something - does not matter.

I tried deploy different version for LTS or 2.X and still nothing. I replaced .WAR file and when i restart jenkins service i lost everything... Version is correctly but i dont see jobs, etc.

I tried install different plugins: core, maven, subversion, job import... and nothing.

Can you please help me?

What can i do that Jenkins shows old configuration after upgrade ?

Thanks,

Michal