I've recently upgrade my iMac to Yosemite. So far, NTFS devices (such as pen dirves or hard drives) were not a problem, but with Yosemite I can't even mount them.

I can see the devices with the Disk Utility app but whenever I try to mount them I always get the same message "Disk could not be mounted" with no further explanations.

I've tried Paragon and Tuxera with no results. Could this be a USB driver problem?

  • You asked "Could this be a USB driver problem?", have you tried mounting a FAT32 formatted USB device? – user3439894 May 16 '15 at 17:46
  • Yes, and it worked fine. – JuanN May 16 '15 at 17:47
  • I succeded yesterday: I had to mount it manually from the shell: mount -t ntfs /dev/disk1s1 /Volumes/usb_folder. Still, I have no write permissions. – JuanN May 20 '15 at 6:40

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