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I wanted to modify my mount options for my NTFS external HDD so that I can execute programs on it. I added the following line to my fstab accordingly:

UUID=CE665A3F665A290B  /media/Josh  ntfs-3g defaults,users,nofail 0 0

But when I plug in my external and I get this error:

Error mounting: mount exited with exit code 1: helper failed with:
Error opening '/dev/sdb1': Permission denied
Failed to mount '/dev/sdb1': Permission denied
Please check '/dev/sdb1' and the ntfs-3g binary permissions, and the mounting user ID. More explanation is provided at http://tuxera.com/community/ntfs-3g-faq/#unprivileged.

Soo I go to the URL provided. It says:

Unprivileged block device mounts work only if all the below requirements are met:

  1. ntfs-3g is compiled with integrated FUSE support
  2. the ntfs-3g binary is at least version 1.2506
  3. the ntfs-3g binary is set to setuid-root
  4. the user has access right to the volume
  5. the user has access right to the mount point

I believe I have all 5 requirements met (though obviously not, since I'm getting that error). Anyone have some tips? In particular, I have:

  1. ntfs-3g 2014.2.15 integrated FUSE 27
  2. ntfs-3g 2014.2.15 integrated FUSE 27
  3. -rwsr-xr-x 1 root root 504887 Mar 8 12:06 /bin/ntfs-3g*
  4. brw-rw---- 1 root disk 8, 17 Mar 8 16:43 /dev/sdb1 (my user is in the "disk" group)
  5. drwxrwxrwx 2 josh josh 4096 Mar 8 12:42 Josh/

Been struggling with this for hours. This link has been the most helpful so far, but notably the last post has my same question and is unanswered.

Thanks!

Community
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jwayne
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  • Where do you see that error? In dmesg? Are you running any mount commands or is this happening automatically when you pluf the drive in? – terdon Mar 08 '14 at 21:58
  • I get a pop-up with that error. This happens automatically when I plug the drive in, I'm not running any commands at all :( – jwayne Mar 08 '14 at 23:10
  • The message is shown when you plug it, but who throws the message? GNOME? Nautilus? Unity? Does /media/Josh exist? What are the permissions? Add the output of just running ntfs-3g in the terminal. – Braiam Mar 08 '14 at 23:18
  • Do you get the same error if you change ntfs-36 to ntfs in the fstab? I don't think that would give that error but it's worth a shot. Also, please show the output of ls -ld /media /media/Josh to make sure that both directories have the right permissions. – terdon Mar 08 '14 at 23:18
  • I got the same error. ls -ld /media/Josh: (drwxrwxrwx 2 josh josh 4096 Mar 8 12:42 Josh/) ls -ld /media: (drwxr-xr-x 3 root root 4096 Mar 8 18:19 /media) – jwayne Mar 08 '14 at 23:20

1 Answers1

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Found an answer that lets me not edit my fstab to get what I want. Since my disk gets automounted, I added a rule to my udev that told the automount to do something special upon plug-in (that I don't really understand). But now my disk gets automounted with all files executable. I created a file /etc/udev/rules.d/99-usb-disks.rules and added:

ENV{ID_FS_TYPE}=="ntfs", ENV{ID_FS_TYPE}="ntfs-3g"

Source: http://ubuntuforums.org/showthread.php?t=1914416&p=11636662#post11636662

Still haven't found a way to get rid of my permissions error when I do use my fstab mod, though.

Thanks terdon for the help.

jwayne
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