GitLab 8.15.0 restore backup not working
<p>I am trying to restore a backup from gitlab A into gitlab B. They are on the same version (8.15.0) but when I try to restore using this commands:</p>

<pre><code>sudo gitlab-ctl stop sidekiq
sudo gitlab-ctl stop unicorn
sudo gitlab-rake gitlab:backup:restore BACKUP=1482434794_2016_12_22
</code></pre>

<p>I get the following error:</p>

<pre><code>rake aborted!
TypeError: no implicit conversion of nil into String
/opt/gitlab/embedded/service/gitlab-rails/lib/backup/manager.rb:122:in `exist?'
/opt/gitlab/embedded/service/gitlab-rails/lib/backup/manager.rb:122:in `unpack'
/opt/gitlab/embedded/service/gitlab-rails/lib/tasks/gitlab/backup.rake:32:in `block (3 levels) in &lt;top (required)&gt;'
/opt/gitlab/embedded/bin/bundle:22:in `load'
/opt/gitlab/embedded/bin/bundle:22:in `&lt;main&gt;'
Tasks: TOP =&gt; gitlab:backup:restore
(See full trace by running task with --trace)
</code></pre>

<p>The server have a clean install just with the root user created. Git lab is running and I already have run once:</p>

<pre><code>sudo gitlab-ctl reconfigure
</code></pre>

<p>I am using ubuntu 16.04 LTS and installed Omnibus version. The command I use to make the backup is </p>

<pre><code>sudo gitlab-rake gitlab:backup:create
</code></pre>

<p>And the generated file is like this:</p>

<pre><code>1482434794_2016_12_22_gitlab_backup.tar
</code></pre>

<p>Any idea of what I'm doing wrong? Thanks for helping</p>