Sto usando Ubuntu 16.04 (doppio avvio con Windows 10). Oggi, volevo usare uno dei miei dischi rigidi esterni (WD - My Book Essential) ma non è apparso alcuna partizione.
Sembra che il dispositivo sia stato rilevato, ma nessuno dei due sistemi operativi è in grado di riconoscere le partizioni al suo interno. (99% sono sicuro che fosse NTFS).
$ ls /dev/sdb*
/dev/sdb
$ sudo fsck.nfs /dev/sdb
/dev/sdb: NFS file system.
$ sudo mount /dev/sdb /mnt -t auto
mount: /dev/sdb: can't read superblock
$ sudo mount /dev/sdb /mnt -t ntfs-3g
Failed to read bootsector (size=0)
Failed to mount '/dev/sdb': Invalid argument
The device '/dev/sdb' doesn't seem to have a valid NTFS.
Maybe the wrong device is used? Or the whole disk instead of a
partition (e.g. /dev/sda, not /dev/sda1)? Or the other way around?
$ parted -l /dev/sdb
<<<< returns nothing
$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 931.5G 0 disk
├─sda1 8:1 0 350M 0 part
├─sda2 8:2 0 117.2G 0 part
├─sda3 8:3 0 466M 0 part
├─sda4 8:4 0 1K 0 part
├─sda5 8:5 0 779.3G 0 part
├─sda6 8:6 0 26.3G 0 part /
└─sda7 8:7 0 7.9G 0 part [SWAP]
sr0 11:0 1 1024M 0 rom
$ dmesg | tail -30
[ 5276.984581] ses 6:0:0:1: Attached scsi generic sg3 type 13
[ 5276.985126] ses 6:0:0:1: Wrong diagnostic page; asked for 1 got 0
[ 5276.985133] ses 6:0:0:1: Failed to get diagnostic page 0xffffffea
[ 5276.985137] ses 6:0:0:1: Failed to bind enclosure -19
[ 5276.989163] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
[ 5276.989483] sd 6:0:0:0: [sdb] Asking for cache data failed
[ 5276.989491] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[ 5276.992708] sd 6:0:0:0: [sdb] Attached SCSI disk
[ 5328.311463] usb 4-2: USB disconnect, device number 4
[ 5340.934431] usb 4-2: new SuperSpeed USB device number 5 using xhci_hcd
[ 5340.950757] usb 4-2: LPM exit latency is zeroed, disabling LPM.
[ 5340.951456] usb 4-2: New USB device found, idVendor=1058, idProduct=1130
[ 5340.951463] usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 5340.951467] usb 4-2: Product: My Book 1130
[ 5340.951470] usb 4-2: Manufacturer: Western Digital
[ 5340.951473] usb 4-2: SerialNumber: XXXXXXXXXXXXXXXXXXXXXXXX
[ 5340.951812] usb-storage 4-2:1.0: USB Mass Storage device detected
[ 5340.952206] scsi host7: usb-storage 4-2:1.0
[ 5343.990579] scsi 7:0:0:0: Direct-Access WD My Book 1130 1014 PQ: 0 ANSI: 6
[ 5343.991228] scsi 7:0:0:1: Enclosure WD SES Device 1014 PQ: 0 ANSI: 6
[ 5343.992376] sd 7:0:0:0: Attached scsi generic sg2 type 0
[ 5343.992534] ses 7:0:0:1: Attached Enclosure device
[ 5343.993104] sd 7:0:0:0: [sdb] Test WP failed, assume Write Enabled
[ 5343.993438] sd 7:0:0:0: [sdb] Asking for cache data failed
[ 5343.993443] sd 7:0:0:0: [sdb] Assuming drive cache: write through
[ 5343.993928] ses 7:0:0:1: Attached scsi generic sg3 type 13
[ 5343.996014] sd 7:0:0:0: [sdb] Attached SCSI disk
[ 5343.997075] ses 7:0:0:1: Wrong diagnostic page; asked for 1 got 0
[ 5343.997081] ses 7:0:0:1: Failed to get diagnostic page 0xffffffea
[ 5343.997085] ses 7:0:0:1: Failed to bind enclosure -19
$ sudo ntfsfix -d -b /dev/sdb
Mounting volume... Failed to read bootsector (size=0)
FAILED
Attempting to correct errors... Failed to read bootsector (size=0)
FAILED
Failed to startup volume: Invalid argument
Failed to read bootsector (size=0)
Unrecoverable error
Volume is corrupt. You should run chkdsk.
$ sudo dd if=/dev/sdb of=/dev/null count=1
0+0 records in
0+0 records out
0 bytes copied, 0.000143676 s, 0.0 kB/s
$ sudo badblocks -b 4096 -c 4096 -s /dev/sdb
badblocks: invalid starting block (0): must be less than 0
$ sudo smartctl -a /dev/sdb
smartctl 6.5 2016-01-24 r4214 [x86_64-linux-4.4.0-59-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org
Read Device Identity failed: scsi error no medium present
A mandatory SMART command failed: exiting. To continue, add one or more '-T permissive' options.
Ho usato anche io testdisk
. Non ha riconosciuto il mio HDD esterno.
Ho provato anche in Windows. In Gestione disco mostra che il disco deve essere inizializzato (il che può finire con la perdita dei miei dati).
Per quanto ho capito, non sto affrontando un grave difetto hardware. Ma anche non riesco a capire qual è il problema esatto. Preferirei evitare un costoso processo di recupero nel caso in cui riesca a gestirlo da solo (con il tuo aiuto)
Come devo risolvere questo problema?
parted -l /dev/sdb
ritorna?