in case of Mac, check Auto Graphics API for Mac at Project Settings/Player. delete Metal
1. backup sudo gitlab-rake gitlab:backup:create https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/raketasks/backup_restore.md copy /var/opt/gitlab/backups/xxxxx_gitlab_backup.tar to temp directory 2. delete completely sudo gitlab-ctl stop sudo gitlab-ctl uninstall sudo gitlab-ctl cleanse sudo gitlab-ctl remove-accounts https://forum.gitlab.com/t/complete-uninstall-gitlab-ce-from-ubuntu-14/6232 3. download gitlab-ce-7.10.4~omnibus.1-1.x86_64.rpm https://packages.gitlab.com/gitlab/gitlab-ce/packages/el/6/gitlab-ce-7.10.4~omnibus.1-1.x86_64.rpm 4. install sudo EXTERNAL_URL="http://gitlab.example.com" rpm -i gitlab-ce-7.10.4~omnibus.1-1.x86_64.rpm https://docs.gitlab.com/omnibus/manual_install.html 5. edit /etc/gitlab/gitlab.rb external_url 6. sudo gitlab-ctl reconfigure 7. check works properly in url 8. sudo gitlab-ctl stop unicorn sudo gitlab-ctl stop sidekiq 9. copy backup fil