Ubuntu – Unable to mount 1TB USB external HDD – Error

external-hddmountpartitioningusb

I'm getting an error when I plug in my 1TB USB external HDD, the weird thing about this is that it was working fine before and I've been using it for about a couple of months now. yesterday I compressed one of the folders which had about 120GB of data but the compression failed after an hour and I decided to unmount the drive and shut everything down.

Today when I tried to plug in the drive I got the following error:

Error mounting: mount: wrong fs type,
bad option, bad superblock on
/dev/sdc,
missing codepage or helper program, or other error
In some cases useful info is found in syslog – try
dmesg | tail or so

output of cat /proc/partitions below

muzikayise@muzikayise-supercom:~$ sudo fdisk -l /dev/sdc

Disk /dev/sdc: 1000.2 GB, 1000204886016 bytes
255 heads, 63 sectors/track, 121601 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x39dcba64

Device Boot Start End Blocks Id System

please will someone kindly assist with this?

thanks in advance,

muzi 20110203:
Ok i had a look and as Jet suggested the partition table is messed up, not sure how that happened. have a look at this below partition details:

muzikayise@muzikayise-supercom:~$ sudo sfdisk -d /dev/sdc > PT.txt
muzikayise@muzikayise-supercom:~$ cat PT.txt
# partition table of /dev/sdc
unit: sectors

/dev/sdc1 : start=        0, size=        0, Id= 0
/dev/sdc2 : start=        0, size=        0, Id= 0
/dev/sdc3 : start=        0, size=        0, Id= 0
/dev/sdc4 : start=        0, size=        0, Id= 0

i'm gonna try fix this, not sure how yet but will google for solutions

Best Answer

cat /etc/fsta and look for /dev/sdb1 , /dev/sdb2 etc

If these lines exist you need to comment or remove them. then remount the drives.

You might be forcing a non-standard file system upon your HDD.

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