Cannot mount pendrive

[Magnus Eriksson]

On Fri, 7 Sep 2007, Mariano Aliaga wrote:

When I try to mount it with:

  mount_msdos /dev/da0s1 /mnt

I get "mount_msdos: /dev/da0s1: Invalid argument".

What am I doing wrong?
  Presuming that it is a harddrive perhaps?  What worked for me, also with 
a "512 MB" stick, was simply mounting /dev/da0.

This looks awfully familiar:

da0s1: slice starts beyond end of the disk: rejecting it
da0s2: slice starts beyond end of the disk: rejecting it
da0s4: slice extends beyond end of disk: truncating from 3435113472 to
  And it most likely means that you don't actually have any 
partitions/slices.

MAgnus