Nikon D100 on Debian Linux

check for your device:
cat /proc/bus/usb/devices
you should see something line mention your device/camera
Install packager: sg3-utils
apt-get install sg3-utils
Scan for the camera device number:
sg_scan -i
Output:
/dev/sg0: scsi0 channel=0 id=0 lun=0 [em]
    NIKON     D100              2.00 [rmb=1 cmdq=0 pqual=0 pdev=0x0] 
/dev/sg1: scsi1 channel=0 id=0 lun=0 [em]
    Nikon     LS-8000 ED        1.05 [rmb=1 cmdq=0 pqual=0 pdev=0x6] 
     
my D100 is on device 0
Find the associated device:
sg_map
Output: /dev/sg0 /dev/sda /dev/sg1
assume 1 patition, ie /dev/sda1
update /etc/fstab
/dev/sda1 /media/camera vfat noauto,user 0 0
mount your camera
mount /media/camera