How to regain or create a new admin user for installed jira application

Question

I have installed jira on a server but forgot my username and password.

Kindly suggest how can i create a new admin user.

Sloan N_ B_ · Answer

In this case follow this guide to access the H2 database:

Accessing Jiras H2 Database

Then proceed with the guide I linked before.

shweta yadav · Answer

yes I have choosen H2 database.

Sloan N_ B_ · Answer

Then you probably have not set up an admin either? Or have you chooses the built in H2 Database?

What is shown when accessing Jira?