Monday, March 24, 2014

A brief test of using case-sensitive filenames on Windows 8 and Server 2012R2

If you load the Services for NFS module on Windows, and set the following reg key, you can enable partial support for non case insensitive (think Linux/Unix) filenames. This was done with Windows 8.1 and Server 2012 R2: I figure it should work like this on 7 or 2012; the functionality has been around for at least 10 years as far as I can tell.

HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\kernel
obcaseinsensitive = 0

Quick observations...


  • On the workstation, one cannot create sensitive filenames directly: locally, or on an SMB share.
  • On the server, sensitive filenames co-exist just fine. They can also be copied by SMB, or downloaded with Filezilla FTP, and still remain sensitive.
  • Case-sensitive files can be copied back to an SMB share on the server, and retain their sensitivity.

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