gdal - Reading Esri File Geodatabase (FileGDB) with OGR?

I have a file ending with *.gdb. I don't know what it actually is. I also don't know what to expect inside the file. I am trying to access it with ogr.

I tried with ogrinfo:

ogrinfo test.gdb 
ERROR 1: posix_spawnp() failed
FAILURE:
Unable to open datasource `test.gdb' with the following drivers.
  -> ESRI Shapefile
  -> MapInfo File
  -> UK .NTF
  -> SDTS

  -> TIGER
  -> S57
  -> DGN
  -> VRT
  -> REC
  -> Memory
  -> BNA
  -> CSV
  -> GML
  -> GPX

  -> KML
  -> GeoJSON
  -> GMT
  -> GPKG
  -> SQLite
  -> WAsP
  -> PostgreSQL
  -> PCIDSK
  -> OpenFileGDB
  -> XPlane

  -> AVCBin
  -> AVCE00
  -> DXF
  -> Geoconcept
  -> GeoRSS
  -> GPSTrackMaker
  -> VFK
  -> PGDump
  -> OSM
  -> GPSBabel

  -> SUA
  -> OpenAir
  -> PDS
  -> WFS
  -> HTF
  -> AeronavFAA
  -> EDIGEO
  -> GFT
  -> GME
  -> SVG

  -> CouchDB
  -> Idrisi
  -> ARCGEN
  -> SEGUKOOA
  -> SEGY
  -> XLS
  -> ODS
  -> XLSX
  -> ElasticSearch
  -> PDF

  -> CartoDB
  -> SXF

So apparently I do have the OpenFileGDB driver. Why do I get an error?

---

I am on OS X 10.10.3

My GDAL version is 1.11.1, released 2014/09/24 installed with brew.

Answer

I do not know why you get an error but compare your results with mine. Download first this file https://hub.qgis.org/attachments/8536/Trecks.gdb.zip

Unzip (it will create a directory) and run ogrinfo

ogrinfo Trecks.gdb
Had to open data source read-only.
INFO: Open of `trecks.gdb'
      using driver `OpenFileGDB' successful.
1: Venedigertreck_3D (3D Multi Line String)
2: Knappentreck_3D (3D Multi Line String)
3: Schobertreck_3D (3D Multi Line String)
4: Lasoerlingtreck_3D (3D Multi Line String)
5: Trecks (3D Multi Line String)
6: Trecks_3D (3D Multi Line String)

7: umbalfaelle (3D Multi Line String)
8: Trecks_fertig (3D Multi Line String)
9: Trecks_3D_fertig (3D Multi Line String)

Select some layer and take a summary report:

ogrinfo Trecks.gdb Knappentreck_3D -so
Had to open data source read-only.
INFO: Open of `Trecks.gdb'
      using driver `OpenFileGDB' successful.


Layer name: Knappentreck_3D
Geometry: 3D Multi Line String
Feature Count: 2
Extent: (148016.066200, 199364.803000) - (152634.006300, 210556.171800)
Layer SRS WKT:
PROJCS["MGI / Austria GK West",
    GEOGCS["MGI",
        DATUM["Militar_Geographische_Institute",
....

Re-run ogrinfo without -so and you should see all the data.