External ext3 HD doesn't mount in Lucid

[sebass]

I have a Samsung S2 external hard drive 500Gb with ext3 file system and lucid beta 1
does not mount it.
(Machine: Sony Vaio VCPF1, corei7, nvidia 310M, running Lucid Lynx Beta 1 fully updated and
upgraded.)

When trying to mount it manually,
"sudo monunt -t ext3 /dev/sdb /media/Samsung"
returns:
"wrong fs type, bad option, bad superblock on /dev/sdb,
       missing codepage or helper program, or other error
       In some cases useful info is found in syslog - try
       dmesg | tail or so"

dmesg:
[12096.832388] usb 2-1.5: USB disconnect, address 23
[12096.832394] sd 26:0:0:0: rejecting I/O to offline device
[12096.832405] sd 26:0:0:0: rejecting I/O to offline device
[12096.832415] sd 26:0:0:0: rejecting I/O to offline device
[12096.832425] sd 26:0:0:0: rejecting I/O to offline device
[12096.832439] sd 26:0:0:0: rejecting I/O to offline device
[12096.832449] sd 26:0:0:0: rejecting I/O to offline device
[12096.832459] sd 26:0:0:0: rejecting I/O to offline device
[12096.832468] sd 26:0:0:0: rejecting I/O to offline device
[12096.832481] sd 26:0:0:0: rejecting I/O to offline device
[12097.218368] usb 2-1.5: new high speed USB device using ehci_hcd and address 24
[12097.340570] usb 2-1.5: configuration #1 chosen from 1 choice
[12097.341593] scsi27 : SCSI emulation for USB Mass Storage devices
[12097.341833] usb-storage: device found at 24
[12097.341838] usb-storage: waiting for device to settle before scanning
[12102.333642] usb-storage: device scan complete
[12102.376093] scsi 27:0:0:0: Direct-Access S-Line S2 Portable PQ: 0 ANSI: 2 CCS
[12102.376766] sd 27:0:0:0: Attached scsi generic sg2 type 0
[12102.450711] sd 27:0:0:0: [sdb] 976773168 512-byte logical blocks: (500 GB/465 GiB)
[12102.451959] sd 27:0:0:0: [sdb] Write Protect is off
[12102.451967] sd 27:0:0:0: [sdb] Mode Sense: 34 00 00 00
[12102.451972] sd 27:0:0:0: [sdb] Assuming drive cache: write through
[12102.453858] sd 27:0:0:0: [sdb] Assuming drive cache: write through
[12102.453866] sdb: sdb1
[12102.478556] sd 27:0:0:0: [sdb] Assuming drive cache: write through
[12102.478564] sd 27:0:0:0: [sdb] Attached SCSI disk
[12109.838462] usb 2-1.5: reset high speed USB device using ehci_hcd and address 24
[12118.839994] usb 2-1.5: reset high speed USB device using ehci_hcd and address 24
[12149.782045] sd 27:0:0:0: Device offlined - not ready after error recovery
[12149.782059] sd 27:0:0:0: [sdb] Unhandled error code
[12149.782063] sd 27:0:0:0: [sdb] Result: hostbyte=DID_ABORT driverbyte=DRIVER_OK
[12149.782070] sd 27:0:0:0: [sdb] CDB: Read(10): 28 00 00 00 00 3f 00 00 08 00
[12149.782086] end_request: I/O error, dev sdb, sector 63
[12149.782094] Buffer I/O error on device sdb1, logical block 0
[12149.782101] Buffer I/O error on device sdb1, logical block 1
[12149.782106] Buffer I/O error on device sdb1, logical block 2
[12149.782111] Buffer I/O error on device sdb1, logical block 3
[12149.782170] sd 27:0:0:0: rejecting I/O to offline device
[12149.782215] sd 27:0:0:0: rejecting I/O to offline device
[12149.782234] sd 27:0:0:0: rejecting I/O to offline device
[12149.782251] sd 27:0:0:0: rejecting I/O to offline device
[12149.782299] sd 27:0:0:0: rejecting I/O to offline device
[12149.782330] sd 27:0:0:0: rejecting I/O to offline device
[12149.782347] sd 27:0:0:0: rejecting I/O to offline device
[12149.782363] sd 27:0:0:0: rejecting I/O to offline device
[12149.782386] sd 27:0:0:0: rejecting I/O to offline device
[12149.782404] sd 27:0:0:0: rejecting I/O to offline device
[12149.782411] usb 2-1.5: USB disconnect, address 24
[12149.782420] sd 27:0:0:0: rejecting I/O to offline device
[12149.782437] sd 27:0:0:0: rejecting I/O to offline device
[12149.782459] sd 27:0:0:0: rejecting I/O to offline device
[12149.782476] sd 27:0:0:0: rejecting I/O to offline device
[12149.782493] sd 27:0:0:0: rejecting I/O to offline device
[12149.782509] sd 27:0:0:0: rejecting I/O to offline device
[12150.120782] usb 2-1.5: new high speed USB device using ehci_hcd and address 25
[12150.221139] usb 2-1.5: configuration #1 chosen from 1 choice
[12150.222245] scsi28 : SCSI emulation for USB Mass Storage devices
[12150.222632] usb-storage: device found at 25
[12150.222637] usb-storage: waiting for device to settle before scanning
[12155.214193] usb-storage: device scan complete
[12155.256526] scsi 28:0:0:0: Direct-Access S-Line S2 Portable PQ: 0 ANSI: 2 CCS
[12155.257198] sd 28:0:0:0: Attached scsi generic sg2 type 0
[12155.331129] sd 28:0:0:0: [sdb] 976773168 512-byte logical blocks: (500 GB/465 GiB)
[12155.332753] sd 28:0:0:0: [sdb] Write Protect is off
[12155.332760] sd 28:0:0:0: [sdb] Mode Sense: 34 00 00 00
[12155.332765] sd 28:0:0:0: [sdb] Assuming drive cache: write through
[12155.334706] sd 28:0:0:0: [sdb] Assuming drive cache: write through
[12155.334714] sdb: sdb1
[12155.366835] sd 28:0:0:0: [sdb] Assuming drive cache: write through
[12155.366843] sd 28:0:0:0: [sdb] Attached SCSI disk
[12162.757130] usb 2-1.5: reset high speed USB device using ehci_hcd and address 25
[12171.808816] usb 2-1.5: reset high speed USB device using ehci_hcd and address 25

Even with Storage Manager or Gparted is not possible to mount it.
HELP!