I am trying to mount my external drive. I think it had a FAT32 partition of 80Gb (the whole drive), but I am not able to.
.
The drive may haver had powering problems (low power supply not a spike).
.
Based on the output to the tried commands, what is happening to it?
.
How can i fix my drive? As I scarcely remember you could use qparted to solve these kinds of problems, but I don't know about the details.
.
How can you fix the drive using knoppix or any other utility for that matter?
.
Thank you


// __
sh-3.1# mount /dev/sda /media/sda1 -rw
mount: wrong fs type, bad option, bad superblock on /dev/sda, missing codepage or other error
In some cases useful info is found in syslog - try dmesg | tail or so
.
// __
sh-3.1# fdisk -l /dev/sda

Disk /dev/sda: 80.0 GB, 80037281792 bytes
255 heads, 63 sectors/track, 9730 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

Disk /dev/sda doesn't contain a valid partition table
.
// __
sh-3.1# dmesg | grep -i sda
SCSI device sda: 156322816 512-byte hdwr sectors (80037 MB)
sda: Write Protect is off
sda: Mode Sense: 11 00 00 00
SCSI device sda: drive cache: write back
SCSI device sda: 156322816 512-byte hdwr sectors (80037 MB)
sda: Write Protect is off
sda: Mode Sense: 11 00 00 00
SCSI device sda: drive cache: write back
sda: unknown partition table
sd 0:0:0:0: Attached scsi disk sda
VFS: Can't find a valid FAT filesystem on dev sda.
SCSI device sda: 156322816 512-byte hdwr sectors (80037 MB)
sda: Write Protect is off
sda: Mode Sense: 11 00 00 00
SCSI device sda: drive cache: write back
SCSI device sda: 156322816 512-byte hdwr sectors (80037 MB)
sda: Write Protect is off
sda: Mode Sense: 11 00 00 00
SCSI device sda: drive cache: write back
sda: unknown partition table
sd 1:0:0:0: Attached scsi disk sda
VFS: Can't find a valid FAT filesystem on dev sda.
VFS: Can't find a valid FAT filesystem on dev sda.
VFS: Can't find a valid FAT filesystem on dev sda.
VFS: Can't find a valid FAT filesystem on dev sda.
.
// __
sh-3.1# lspci -v | grep HCI
0000:00:0f.0 FireWire (IEEE 1394): NEC Corporation uPD72874 IEEE1394 OHCI 1.1 3-port PHY-Link Ctrlr (rev 01) (prog-if 10 [OHCI])
Subsystem: NEC Corporation uPD72874 IEEE1394 OHCI 1.1 3-port PHY-Link Ctrlr
.
// __
sh-3.1# modprobe usb-uhci
FATAL: Module usb_uhci not found.
sh-3.1# modprobe usb-ohci
FATAL: Module usb_ohci not found.
sh-3.1# modprobe usb-storage
sh-3.1#
.
// __