% ls -la /dev/sda1 /mnt/sda1 
brw-rw---- 1 root disk 8, 1 2010-05-28 22:57 /dev/sda1

/mnt/sda1:
total 0
drwxr-xr-x  2 root root  60 2010-05-28 22:58 .
drwxr-xr-x 27 root root 240 2010-05-28 22:58 ..

% fdisk -l

Disk /dev/sda: 20.4 GB, 20411080704 bytes
255 heads, 63 sectors/track, 2481 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x95b895b8

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1         124      995998+  83  Linux
/dev/sda2             125         732     4883760   17  Hidden HPFS/NTFS
/dev/sda3             733        2481    14048842+   5  Extended
/dev/sda5             733         793      489951   82  Linux swap / Solaris
/dev/sda6             794        1279     3903763+   7  HPFS/NTFS
/dev/sda7            1280        1765     3903763+  83  Linux
 [ . . . ]