Missing hard drive space

[MG]

Some progress, any ideas now?
Thx!

root at THUNDERCAT1:/home/max# sudo mount -a
mount: wrong fs type, bad option, bad superblock on /dev/sdc1,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

$MFTMirr does not match $MFT (record 1).
Failed to mount '/dev/sdb1': Input/output error
NTFS is either inconsistent, or you have hardware faults, or you have a
SoftRAID/FakeRAID hardware. In the first case run chkdsk /f on Windows
then reboot into Windows TWICE. The usage of the /f parameter is very
important! If you have SoftRAID/FakeRAID then first you must activate
it and mount a different device under the /dev/mapper/ directory, (e.g.
/dev/mapper/nvidia_eahaabcc1). Please see the 'dmraid' documentation
for the details.
NTFS signature is missing.
Failed to mount '/dev/sdd1': Invalid argument
The device '/dev/sdd1' doesn't have a valid NTFS.
Maybe you selected the wrong device? Or the whole disk instead of a
partition (e.g. /dev/hda, not /dev/hda1)? Or the other way around?
root at THUNDERCAT1:/home/max#

# /etc/fstab: static file system information.
#
#  -- This file has been automaticly generated by ntfs-config --
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>

proc /proc proc defaults 0 0
# Entry for /dev/sda1 :
UUID=d053ecd0-1482-4cfc-8b34-1d821a41f843 / ext3 relatime,errors=remount-ro
0 1
# Entry for /dev/sda5 :
UUID=8c6a2356-9c6b-4ef1-9b65-8e6edbf76120 none swap sw 0 0
/dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec,utf8 0 0
 none       /mnt/ramfs      tmpfs      defaults  0 0
# Entry for /dev/sdc1 :
 /dev/sdc1       /media/External/usb1      vfat      rw,hard,intr  2 2
# Entry for /dev/sdb1 :
 /dev/sdb1       /media/External/usb2      ntfs-3g      rw,hard,intr  2 2
# Entry for /dev/sdd1 :
 /dev/sdd1       /media/External/usb3      ntfs-3g      rw,hard,intr  2 2
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.ubuntu.com/archives/ubuntu-users/attachments/20090420/f29d3ee7/attachment.html>