TrueCrypt defaults to MS-DOS FAT16 for a 10 MB FAT container

[macbookpro08-centrim:~] gjp22% date
Sat 28 Apr 2012 19:19:50 BST
[macbookpro08-centrim:~] gjp22% diskutil list | grep 10MB
   0:                            10MB                   *10.2 MB    disk7
[macbookpro08-centrim:~] gjp22% diskutil eraseVolume "MS-DOS FAT16" SM-FAT16 /dev/disk7
Started erase on disk7 10MB
Unmounting disk
Erasing
512 bytes per physical sector
/dev/rdisk7: 19888 sectors in 9944 FAT16 clusters (1024 bytes/cluster)
bps=512 spc=2 res=1 nft=2 r
de=512 sec=20000 mid=0xf0 spf=39 spt=32 hds=16 hid=0 drv=0x00
Mounting disk
Finished erase on disk7 SM-FAT16
[macbookpro08-centrim:~] gjp22% clear





[macbookpro08-centrim:~] gjp22% diskutil info disk7
   Device Identifier:        disk7
   Device Node:              /dev/disk7
   Part of Whole:            disk7
   Device / Media Name:      Apple read/write Media

   Volume Name:              SM-FAT16
   Escaped with Unicode:     SM-FAT16

   Mounted:                  Yes
   Mount Point:              /Volumes/SM-FAT16
   Escaped with Unicode:     /Volumes/SM-FAT16

   File System Personality:  MS-DOS FAT16
   Type (Bundle):            msdos
   Name (User Visible):      MS-DOS (FAT16)

   Content (IOContent):      None
   OS Can Be Installed:      No
   Media Type:               Generic
   Protocol:                 Disk Image
   SMART Status:             Not Supported

   Total Size:               10.2 MB (10240000 Bytes) (exactly 20000 512-Byte-Blocks)
   Volume Free Space:        10.2 MB (10175488 Bytes) (exactly 19874 512-Byte-Blocks)
   Device Block Size:        512 Bytes

   Read-Only Media:          No
   Read-Only Volume:         No
   Ejectable:                Yes

   Whole:                    Yes
   Internal:                 No
   OS 9 Drivers:             No
   Low Level Format:         Not supported

[macbookpro08-centrim:~] gjp22% date
Sat 28 Apr 2012 19:21:49 BST
[macbookpro08-centrim:~] gjp22% diskutil info disk7
   Device Identifier:        disk7
   Device Node:              /dev/disk7
   Part of Whole:            disk7
   Device / Media Name:      Apple read/write Media

   Volume Name:              SM-FAT16
   Escaped with Unicode:     SM-FAT16

   Mounted:                  Yes
   Mount Point:              /Volumes/SM-FAT16
   Escaped with Unicode:     /Volumes/SM-FAT16

   File System Personality:  MS-DOS FAT16
   Type (Bundle):            msdos
   Name (User Visible):      MS-DOS (FAT16)

   Content (IOContent):      None
   OS Can Be Installed:      No
   Media Type:               Generic
   Protocol:                 Disk Image
   SMART Status:             Not Supported

   Total Size:               10.2 MB (10240000 Bytes) (exactly 20000 512-Byte-Blocks)
   Volume Free Space:        3.0 MB (3045376 Bytes) (exactly 5948 512-Byte-Blocks)
   Device Block Size:        512 Bytes

   Read-Only Media:          No
   Read-Only Volume:         No
   Ejectable:                Yes

   Whole:                    Yes
   Internal:                 No
   OS 9 Drivers:             No
   Low Level Format:         Not supported

[macbookpro08-centrim:~] gjp22% hdiutil detach /Volumes/SM-FAT16
"disk7" unmounted.
"disk7" ejected.
[macbookpro08-centrim:~] gjp22% clear





[macbookpro08-centrim:~] gjp22% date
Sat 28 Apr 2012 19:24:04 BST
[macbookpro08-centrim:~] gjp22% mount
/dev/disk1 on / (hfs, local, journaled)
devfs on /dev (devfs, local, nobrowse)
map -hosts on /net (autofs, nosuid, automounted, nobrowse)
map auto_home on /home (autofs, automounted, nobrowse)
/dev/disk0s5 on /Volumes/scratchy (hfs, local, journaled)
localhost:/xPi1Y5lDWMgcwqZMxNWT6g on /Volumes/MobileBackups (mtmfs, nosuid, read-only, nobrowse)
/dev/disk3 on /Volumes/backups-ZFS (zfs, local, journaled)
/dev/disk5 on /Volumes/zhandy (zfs, local, journaled)
/dev/disk6s2 on /Volumes/ …{name redacted}… (hfs, local, nodev, nosuid, journaled, noowners, mounted by gjp22)
TrueCrypt@osxfuse0 on /private/var/folders/9q/d5yyhj611wd29w91zyzxr1s0000ks4/T/.truecrypt_aux_mnt1 (osxfusefs, nodev, nosuid, synchronous, nobrowse, mounted by gjp22)
/dev/disk7 on /Volumes/NO NAME (msdos, local, nodev, nosuid, noowners, mounted by gjp22)
[macbookpro08-centrim:~] gjp22% diskutil info disk7
   Device Identifier:        disk7
   Device Node:              /dev/disk7
   Part of Whole:            disk7
   Device / Media Name:      Apple read/write Media

   Volume Name:              NO NAME
   Escaped with Unicode:     NO%FF%FE%20%00NAME

   Mounted:                  Yes
   Mount Point:              /Volumes/NO NAME
   Escaped with Unicode:     /Volumes/NO%FF%FE%20%00NAME

   File System Personality:  MS-DOS FAT16
   Type (Bundle):            msdos
   Name (User Visible):      MS-DOS (FAT16)

   Content (IOContent):      None
   OS Can Be Installed:      No
   Media Type:               Generic
   Protocol:                 Disk Image
   SMART Status:             Not Supported

   Total Size:               10.2 MB (10223616 Bytes) (exactly 19968 512-Byte-Blocks)
   Volume Free Space:        10.2 MB (10159104 Bytes) (exactly 19842 512-Byte-Blocks)
   Device Block Size:        512 Bytes

   Read-Only Media:          No
   Read-Only Volume:         No
   Ejectable:                Yes

   Whole:                    Yes
   Internal:                 No
   OS 9 Drivers:             No
   Low Level Format:         Not supported