“ls fs0:\File.txt" can list the file correctly but when the backslash is removed from colon, the file cannot be listed. The patch fixes this issue. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com> Reviewed-by: Jaben Carsey <jaben.carsey@intel.com> Reviewed-by: Tapan Shah <tapandshah@hpe.com>