I'm trying to mount my 64 GB SDXC card into my computer's internal card reader but I get the following message:

Error mounting /dev/sdd at /media/renato/disk: 
Command-line `mount -t "exfat" -o "uhelper=udisks2,nodev,nosuid" "/dev/sdd" "/media/renato/disk"' 
exited with non-zero exit status 32: mount: unknown filesystem type 'exfat'

What can I do to make Ubuntu 13.10 64 bit read my SD card so I can download my pictures?


I think you don't have the exfat drivers to write. You could try the -ro option in your mount command, it should work (but you obviously won't be able to write on your card^^).

Here's what I found on Google (in French) : ubuntu-fr.org

Exfat (or fat64) is the latest AND non open-source file format by Microsoft, to overcome the 4gb limit size of fat32. To access exfat with read-write, add the ppa relan/exfat and install the package exfat-utils :

sudo add-apt-repository -y ppa:relan/exfat
sudo apt-get update -qq
sudo apt-get install exfat-utils

Another solution would be to format your card in NTFS (non open-source, but Ubuntu should be able to write it with ntfs-3g package installed) or EXT4 format (free open-source yeay!), but it depends on the use you have of the card.

Here you can learn more about the various formats.

To change the format of your card, you can use a GUI programm like Gparted (root access needed) :

sudo apt-get install gparted
| improve this answer | |
  • Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: fuse-exfat : Depends: fuse-utils (>= 2.7) but it is not installable E: Unable to correct problems, you have held broken packages. – rjltrevisan Jan 26 '14 at 18:20
  • What should I do? – rjltrevisan Jan 26 '14 at 18:22
  • Install exfat-utils only, apparently fuse-exfat is not maintained on 13.10 – MrVaykadji Jan 27 '14 at 0:10
  • Hmm, but how do I do that? – rjltrevisan Jan 27 '14 at 1:49
  • 1
    sudo apt-get install exfat-utils – MrVaykadji Jan 27 '14 at 8:20

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