I'm in the process of building a new server to upgrade from GitLab 6.9.1 to the latest version of GitLab (7.14.1) on Ubuntu 14.04 LTS.
I've created a backup of the GitLab instance using the following command:
sudo gitlab-rake gitlab:backup:create
I've copied the backup to the new server and placed it /var/opt/gitlab/backups/.
When I run the command to restore the backup on the new server with the new GitLab instance
sudo gitlab-rake gitlab:backup:restore BACKUP=1442406091
I get the following error:
Unpacking backup ... done
GitLab version mismatch:
Your current GitLab version (7.14.3) differs from the GitLab version in the backup!
Please switch to the following version and try again:
version: 6.9.1
Hint: git checkout v6.9.1
I've read in the GitLab documentation that a restore is only possible from the same version of GitLab but is there a way to restore the backup from 6.9.1 to a new fresh instance of 7.14.
Having just done something very similar, the only way I found that worked is to just install the same version as your old install (6.9.1) as a deb from https://about.gitlab.com/downloads/archives/, restore from your backup in to it, then upgrade gitlab-ce using apt-get upgrade gitlab-ce. Hope that helps.