kosv:/media# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda6             7.5G  4.4G  2.8G  62% /
tmpfs                 253M     0  253M   0% /lib/init/rw
udev                   10M   68K   10M   1% /dev
tmpfs                 253M     0  253M   0% /dev/shm
/dev/sda7             6.5G  3.3G  2.9G  54% /home
/dev/sda1              20G   14G  6.7G  67% /media/dosc
/dev/sda5              40G   37G  2.4G  94% /media/dosd
192.168.0.1:/share/samba
                       56G   55G  980M  99% /share
/dev/sdb              239M  228M   12M  96% /media/Debian Inst
akosv:/media# fdisk /dev/sdb

Command (m for help): p

Disk /dev/sdb: 524 MB, 524288000 bytes
17 heads, 59 sectors/track, 1020 cylinders
Units = cylinders of 1003 * 512 = 513536 bytes

This doesn't look like a partition table
Probably you selected the wrong device.

   Device Boot      Start         End      Blocks   Id  System
/dev/sdb1   ?     3011485     3011990      253319   e4  SpeedStor
Partition 1 has different physical/logical beginnings (non-Linux?):
     phys=(190, 120, 0) logical=(3011484, 2, 23)
Partition 1 has different physical/logical endings:
     phys=(544, 125, 44) logical=(3011989, 4, 27)
Partition 1 does not end on cylinder boundary.
/dev/sdb2   ?     1003552     2985574   993984023   98  Unknown
Partition 2 has different physical/logical beginnings (non-Linux?):
     phys=(1010, 16, 43) logical=(1003551, 7, 8)
Partition 2 has different physical/logical endings:
     phys=(205, 205, 22) logical=(2985573, 6, 46)
Partition 2 does not end on cylinder boundary.
/dev/sdb3   ?     1691552     3605716   959953209   7d  Unknown
Partition 3 has different physical/logical beginnings (non-Linux?):
     phys=(252, 139, 46) logical=(1691551, 2, 5)
Partition 3 has different physical/logical endings:
     phys=(367, 195, 2) logical=(3605715, 0, 48)
Partition 3 does not end on cylinder boundary.
/dev/sdb4   ?       33389       41687     4161536    0  Empty
Partition 4 has different physical/logical beginnings (non-Linux?):
     phys=(0, 10, 0) logical=(33388, 12, 25)
Partition 4 has different physical/logical endings:
     phys=(0, 0, 0) logical=(41686, 15, 25)
Partition 4 does not end on cylinder boundary.

Partition table entries are not in disk order

Command (m for help): q

akosv:/media# cat /proc/mounts
rootfs / rootfs rw 0 0
none /sys sysfs rw 0 0
none /proc proc rw 0 0
udev /dev tmpfs rw 0 0
/dev/sda6 / ext3 rw,data=ordered 0 0
/dev/sda6 /dev/.static/dev ext3 rw,data=ordered 0 0
tmpfs /lib/init/rw tmpfs rw,nosuid 0 0
usbfs /proc/bus/usb usbfs rw,nosuid,nodev,noexec 0 0
tmpfs /dev/shm tmpfs rw,nosuid,nodev 0 0
devpts /dev/pts devpts rw,nosuid,noexec 0 0
/dev/sda7 /home ext3 rw,data=ordered 0 0
/dev/sda1 /media/dosc vfat ro,nosuid,nodev,noexec,fmask=0022,dmask=0022,codepage=cp437,iocharset=iso8859-1 0 0
/dev/sda5 /media/dosd vfat rw,nosuid,nodev,noexec,fmask=0000,dmask=0000,codepage=cp437,iocharset=iso8859-1 0 0
192.168.0.1:/share/samba /share nfs rw,vers=3,rsize=32768,wsize=32768,hard,intr,proto=tcp,timeo=600,retrans=2,sec=sys,addr=192.168.0.1 0 0
/dev/sdb /media/Debian\040Inst vfat rw,nosuid,nodev,noexec,uid=1000,gid=1000,fmask=0077,dmask=0077,codepage=cp437,iocharset=utf8,shortname=mixed,quiet 0 0
akosv:/media#