Some progress, any ideas now? Thx! root@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@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