Upgrade to Yosemite will break NTFS R&W. Here’s how to redo it:


  • brew
  • brew cask

if you don’t know or don’t have brew, check this out: dotfiles


1. Install a binary osxfuse package from Homebrew Cask:

brew cask install osxfuse

2. Install ntfs-3g:

brew install ntfs-3g

3. Symlink to correct version of mount_ntfs:

sudo mv /sbin/mount_ntfs /sbin/mount_ntfs.original
sudo ln -s /usr/local/sbin/mount_ntfs /sbin/mount_ntfs

4. Remount the NTFS drive and it will work!