title: Recovering backup from wrong version
body: <p>I have a backup file that I cannot confirm but I am 99% positive it was created using version 2.1. Now I try to recover it using version 2.1.4.18393 using this command:</p>
  
  <pre><code>  c:\users\me\documents&gt; "c:\Program Files\Firebird\Firebird_2_1\bin\gbak.exe" -C tmp.gbk "localhost:c:\users\me\documents\sgl.fdb" -v -user sysdba -password masterkey
  </code></pre>
  
  <p>and I get this error:</p>
  
  <pre><code>  gbak: ERROR:Expected backup version 1..8.  Found 9
  </code></pre>
  
  <p>I tried to recover using firebird 2.5 but got</p>
  
  <pre><code>  gbak: ERROR:Malformed string
    gbak:Invalid metadata detected. Use -FIX_FSS_METADATA option.
  </code></pre>
  
  <p>How can I recover this file?</p>