Hi to Everyone,
My
WD P/N : WD10000H
1Q
S/N : WCAU4D
164675
is about 4 or 5
years old. It is an external drive using external power supply.
At start, I had formatted it in ext3, so that I 'd be able to
storage videofiles larger than 2 Gb. Since then, I storaged a
number of files in several directories, subdirectories etc.. I
never had any problem until now.
This drive no
longer mounts. It does not mount automatically as it used to,
and I don't know how to mount it manually. My other similar
drives mount on /dev/sdb1 or /dev/sr0... depending on to which
computer I mount it. In case it doesn't automatically mount, I
just type :
#mount /dev/sdb1
/media/bd/ext
and it works
but right now I
don't know for sure the device name to mount.
If I list my /dev
directory using ls -lt, I can see what new device appears in the
list whenever I plug my external drive. It shows 'sdb'. Not
'sdb1' as for other external drives, just 'sdb'. If now I type :
# mount /dev/sdb
/media/bd/ext
this gets the
external drive to react : the light goes up and down for awhile,
and then I get this message :
'you must specify
the filesystem'
But, if I try :
# mount -t ext3
/dev/sdb /media/bd/ext
I get this :
'wrong fs type, bad option, bad superblock on /dev/sdb…'
same result if I
try mounting on 'fat', 'msdos'… filesystems, but I doubt if
there are any FAT or msdos space left on this device since I had
reformated it to ext3.
At last, I
tried :
# fsck /dev/sdb
(the external drive starts to light, then :
'fsck ext2 :
superblock invalid. Trying to backup blocks
fsck ext2 : bad
magic number in superblock while trying to open /dev/sdb
Now, if I type :
cat
/proc/scsi/scsi
I get this :
scsi0 ATA MAXTOR
STM
scsi1 ATA MAXTOR
STM
scsi5 WD My Book
Direct Access
/etc/fstab
does not show any
sdb device
How am I to get
this drive back to operation, or, at least, to recuperate the
datafiles that are stored in that WD external drive ?
Thanks in advance
to tell me what diagnosis and repair tools I could use
Bernard
You have to specify partition to mount not whole disk device.