robin@robin-Latitude-D620:~$ sudo dosfsck -v /dev/sdb
[sudo] password for robin:
dosfsck 3.0.9 (31 Jan 2010)
dosfsck 3.0.9, 31 Jan 2010, FAT32, LFN
Checking we can access the last sector of the filesystem
Boot sector contents:
System ID "MSDOS5.0"
Media byte 0xf8 (hard disk)
       512 bytes per logical sector
      4096 bytes per cluster
        32 reserved sectors
First FAT starts at byte 16384 (sector 32)
         2 FATs, 32 bit entries
   7933952 bytes per FAT (= 15496 sectors)
Root directory start at cluster 2 (arbitrary size)
Data area starts at byte 15884288 (sector 31024)
   1983450 data clusters (8124211200 bytes)
63 sectors/track, 255 heads
         0 hidden sectors
  15898624 sectors total
Checking for unused clusters.
Checking free cluster summary.
/dev/sdb: 1172 files, 1967756/1983450 clusters
robin@robin-Latitude-D620:~$ sudo dosfsck -v /dev/sdb1
dosfsck 3.0.9 (31 Jan 2010)
dosfsck 3.0.9, 31 Jan 2010, FAT32, LFN
open: No such file or directory