UPDATED: Add the Universe repository and then run the following:
sudo apt-get install exfat-fuse exfat-utils
OLD Info:
I'm running Ubuntu so I ran the following:
sudo add-apt-repository ppa:relan/exfat sudo apt-get update sudo apt-get install fuse fuse-exfat exfat-utils
mkdir /media/sdcard
mount -t exfat -o uhelper=udisks2,nodev,nosuid,uid=1003,gid=1003,iocharset=utf8,namecase=0,errors=remount-ro,umask-0077 /dev/sde1 /media/sdcard
Initial Error Message:
Error mounting /dev/sde1 at /media/sdcard: Command-line `mount -t "exfat" -o "uhelper=udisks2,nodev,nosuid,uid=1003,gid=1003,iocharset=utf8,namecase=0,errors=remount-ro,umask=0077" "/dev/sde1" "/media/sdcard"' exited with non-zero exit status 32: mount: unknown filesystem type 'exfat'
Initial Error Message:
Error mounting /dev/sde1 at /media/sdcard: Command-line `mount -t "exfat" -o "uhelper=udisks2,nodev,nosuid,uid=1003,gid=1003,iocharset=utf8,namecase=0,errors=remount-ro,umask=0077" "/dev/sde1" "/media/sdcard"' exited with non-zero exit status 32: mount: unknown filesystem type 'exfat'