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I followed the directions here:

NTFS-3G via Homebrew installation

If you have [Homebrew][5], installing NTFS support is as easy as running the following in a terminal:

brew install ntfs-3g

Then, follow the instructions on the screen. Homebrew will tell you how to replace the default OS X automounter so external NTFS drives are mounted using the new driver. Those are a couple of commands you need to run through your terminal.

And it worked perfectly at first, but a couple days later now and when I insert a USB drive that worked before, it is mounting as read-only.

How can I get NTFS-3g working again? I tried reinstalling the homebrew, but it stated that it was already installed and did nothing. Should I uninstall and reinstall, if so, how do you uninstall a homebrew item?

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2
  • You can try brew remove ntfs-3g and then install again. No need to completely remove Homebrew though. Make sure you follow the instructions where you have to copy a file over—this is needed to have OS X automatically mount drives in write-mode.
    – slhck
    May 15, 2013 at 7:13
  • Yeah, I don't have the instructions anymore, perhaps that would be sufficient, but lacking that, I will remove and reinstall to get the instructions again.
    – WilliamKF
    May 15, 2013 at 17:10

1 Answer 1

Reset to default
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NTFS-3G asks you to replace /sbin/mount_ntfs with their own version. If it stops working, then probably is because an OS X update replaced that file.

To fix this, you must do the following:

  1. Rename the mount_ntfs command provided by OS X:

    sudo mv /sbin/mount_ntfs /sbin/mount_ntfs.original

  2. Make sure the mount_ntfs command provided by NTFS-3G is used:

    sudo ln -s /usr/local/sbin/mount_ntfs /sbin/mount_ntfs

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  • Can you please explain what these command do?
    – Cfinley
    Aug 7, 2014 at 13:55
  • I've edited the answer to provide a little more detail
    – tvs
    Aug 7, 2014 at 23:51

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