bamboo upgrade from 6.6.2 to 7.2 version

[Ayashakanta Mishra]

Steps:

1. Installed bamboo 6.6 version and 7.2 version and postgres(9.6) database.
2. created fresh database(bambooolddb).
3. Took the backup for database.

     sudo -u postgres pg_dump bambooolddb | gzip -9 > bamboodb.sql.qz

1. Uninstalled postgres(9.6) database.
2. Reinstalled postgres and created fresh database (bamboodb).
3. Restored data from the backup data to newly created database.

    zcat bamboodb.sql.qz | psql -h localhost -p 5432 -U bamboouser2 bamboodb

1. Updated bamboo-config.xml with new database name(bamboodb) and username in bamboo 7.2 version home folder.
2. Restart the bamboo 7.2 application.
3. While access the bamboo 7.2 in browser facing below issue.

[Bamboo bootstrap failed: Your Bamboo instance could not start because health check failed. Contact Atlassian Support at https://support.atlassian.com]

[Marcin Gardias]

The problem is (probably) that your database is from version 6.6 and your bamboo home folder is from version 7. You need to run Bamboo version 7 using the same bamboo home as you had for Bamboo 6.6, the only change should be the new database connection details.