bad magic number in super-block ..
Cosa converrebbe fare ?
E' il caso di fare un bel check del file system ?
ricordo che tramite fdisk -l ho ottenuto dal disco collegato ad adattatore USB ..
Disco /dev/sdb: 80.0 GB, 80032038912 byte
16 heads, 63 sectors/track, 155072 cylinders
Units = cilindri of 1008 * 512 = 516096 bytes
Disk identifier: 0x8f800000
Dispositivo Boot Start End Blocks Id System
/dev/sdb1 * 1 155072 78156256+ a5 FreeBSD
allego cosa è accaduto a livello di messaggi di sistema quando ho collegato il disco USB alla mia ubuntu ..
Codice: Seleziona tutto
[686578.057597] printk: 180 messages suppressed.
[686578.057603] rtc: lost 14 interrupts
[686578.311432] usb 5-6: new high speed USB device using ehci_hcd and address 7
[686578.445840] usb 5-6: configuration #1 chosen from 1 choice
[686578.446114] scsi6 : SCSI emulation for USB Mass Storage devices
[686578.446157] usb-storage: device found at 7
[686578.446160] usb-storage: waiting for device to settle before scanning
[686583.435164] usb-storage: device scan complete
[686583.437177] scsi 6:0:0:0: Direct-Access Maxtor 6 Y080L0 0000 PQ: 0 ANSI: 0
[686583.439142] sd 6:0:0:0: [sdb] 156312576 512-byte hardware sectors (80032 MB)
[686583.440164] sd 6:0:0:0: [sdb] Write Protect is off
[686583.440169] sd 6:0:0:0: [sdb] Mode Sense: 27 00 00 00
[686583.440171] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[686583.441141] sd 6:0:0:0: [sdb] 156312576 512-byte hardware sectors (80032 MB)
[686583.442010] sd 6:0:0:0: [sdb] Write Protect is off
[686583.442015] sd 6:0:0:0: [sdb] Mode Sense: 27 00 00 00
[686583.442017] sd 6:0:0:0: [sdb] Assuming drive cache: write through
[686583.442020] sdb: sdb1
[686583.461604] sdb1: <bsd: sdb5 sdb6 >
[686583.461708] sd 6:0:0:0: [sdb] Attached SCSI disk
[686583.461756] sd 6:0:0:0: Attached scsi generic sg2 type 0
[686585.165062] sd 6:0:0:0: [sdb] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
[686585.165070] sd 6:0:0:0: [sdb] Sense Key : Medium Error [current]
[686585.165075] sd 6:0:0:0: [sdb] Add. Sense: Unrecovered read error
[686585.165081] end_request: I/O error, dev sdb, sector 120
[686585.165085] Buffer I/O error on device sdb5, logical block 41
[686585.165091] Buffer I/O error on device sdb5, logical block 42
[686585.165094] Buffer I/O error on device sdb5, logical block 43
[686585.165097] Buffer I/O error on device sdb5, logical block 44
[686585.165100] Buffer I/O error on device sdb5, logical block 45
[686585.165103] Buffer I/O error on device sdb5, logical block 46
[686585.165106] Buffer I/O error on device sdb5, logical block 47
[686585.165111] Buffer I/O error on device sdb5, logical block 48
[686585.165114] Buffer I/O error on device sdb5, logical block 49
[686585.165117] Buffer I/O error on device sdb5, logical block 50
[686586.627666] sd 6:0:0:0: [sdb] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE,SUGGEST_OK
[686586.627674] sd 6:0:0:0: [sdb] Sense Key : Medium Error [current]
[686586.627679] sd 6:0:0:0: [sdb] Add. Sense: Unrecovered read error
[686586.627684] end_request: I/O error, dev sdb, sector 120
ed ecco cosa ottengo quando riprovo da bash a montare la partizione
/dev/sdb1
sudo mount -r -t ufs -o ufstype=44bsd /dev/sdb1 /media/disk
[sudo] password for utente
mount: wrong fs type, bad option, bad superblock on /dev/sdb1,
missing codepage or helper program, or other error
In alcuni casi si possono trovare informazioni utili in syslog. Provare
ad esempio 'dmesg | tail'
e se verifico con dmesg .. ( ottengo un solo messaggio )
[687425.185374] ufs_read_super: bad magic number
e visto che voglio risalire al contenuto di questo disco ..
Cosa converrebbe fare ?
E' il caso di fare un bel check del file system ?
Attenzione però a queste scritte ( del dmesg )
[686583.442020]
sdb: sdb1
[686583.461604]
sdb1:
ci sono partizioni secondarie oppure no ?
ciao
