5 Replies Latest reply: May 5, 2012 11:00 AM by Paul Bitterlich
Paul Bitterlich Level 1 Level 1 (0 points)

After upgrading from Snow Leopard to Lion, my root file system is suddenly case insensitive. Is it possible to convert it back to being case sensitive? I've looked into the man pages for diskutil and hfs.util, but neither seems to provide what I'm looking for.

Thanks & regards,

Paul


MacBook Pro, Mac OS X (10.7)
  • 1. Re: How can I convert to case sensitive?
    Allan Eckert Level 8 Level 8 (41,525 points)

    Why do you need case sensitive file system?

     

    It has been my experience that case sensitive causes problems with many applications.

     

    Allan

  • 2. Re: How can I convert to case sensitive?
    Paul Bitterlich Level 1 Level 1 (0 points)

    Thanks for your reply! I'm developing Web applications which will get deployed on Linux and *BSD machines, so I'd like my machine to be as close to the target systems as possible. I've been a Unix person for 15+ years, so I feel right at home with a case sensitive file system. And I've been using case sensitive file systems on all my Macs since 2006, without any problems. Fortunately, I don't depend on Adobe products, which would apparently be problematic in my case. I've encountered exactly one non-Adobe program along the way which caused problems with a case sensitive file system.

     

    TL;DR: I know from experience that a case sensitive file system is fine for my kind of usage.

  • 3. Re: How can I convert to case sensitive?
    Paul Bitterlich Level 1 Level 1 (0 points)

    In the end, I reformatted the drive as HFSX (case sensitive), reinstalled Lion and used the Migration Assistant to recover my data from my Time Machine backup. Fortunately, the Migration Assistand doesn't change the case sensitive state of the file system.

  • 4. Re: How can I convert to case sensitive?
    Robson Peixoto Level 1 Level 1 (0 points)

    Will it work if I format the filesystem in case sensitive and restore the system using the time machine?

  • 5. Re: How can I convert to case sensitive?
    Paul Bitterlich Level 1 Level 1 (0 points)

    No, most unfortunately, that won't work. I've tried to go that way, but after the restore, the filesystem was (strangely enough) case insensitive again. You can use the Migration Assistant to recover the data from a Time Machine Backup, though.