Hi, my problem is not a hard disk but my nokia n73, when I plugged the usb cable and select mass-storage mode in the phone, the phone does not get mounted, I put at the end of this comment the relevant dmesg output. I can't set allow_restart or max_sectors because it says "permission denied" but I do it with sudo so it's not a problem of being root, and I havent been able to test at setting it from udev because the model and vendor attributes are empty so I can't match on those...

[65507.480000] usb 3-1: new full speed USB device using uhci_hcd and address 50
[65507.644000] usb 3-1: configuration #1 chosen from 1 choice
[65507.652000] scsi17 : SCSI emulation for USB Mass Storage devices
[65507.652000] usb-storage: device found at 50
[65507.652000] usb-storage: waiting for device to settle before scanning
[65512.652000] usb-storage: device scan complete
[65512.656000] scsi 17:0:0:0: Direct-Access                                    PQ: 0 ANSI: 0
[65512.668000] sd 17:0:0:0: [sdc] 3994377 512-byte hardware sectors (2045 MB)
[65512.668000] sd 17:0:0:0: [sdc] Write Protect is off
[65512.668000] sd 17:0:0:0: [sdc] Mode Sense: 03 00 00 00
[65512.668000] sd 17:0:0:0: [sdc] Assuming drive cache: write through
[65512.680000] sd 17:0:0:0: [sdc] 3994377 512-byte hardware sectors (2045 MB)
[65512.680000] sd 17:0:0:0: [sdc] Write Protect is off
[65512.680000] sd 17:0:0:0: [sdc] Mode Sense: 03 00 00 00
[65512.680000] sd 17:0:0:0: [sdc] Assuming drive cache: write through
[65512.680000]  sdc:
[65512.720000] sd 17:0:0:0: [sdc] Attached SCSI removable disk
[65512.720000] sd 17:0:0:0: Attached scsi generic sg3 type 0
[65512.912000] sd 17:0:0:0: [sdc] Device not ready: <6>: Sense Key : Not Ready [current] 
[65512.912000] : Add. Sense: No additional sense information
[65512.912000] end_request: I/O error, dev sdc, sector 3994369
[65512.912000] printk: 334 messages suppressed.
[65512.912000] Buffer I/O error on device sdc, logical block 3994369
[65512.912000] Buffer I/O error on device sdc, logical block 3994370
[65512.912000] Buffer I/O error on device sdc, logical block 3994371
[65512.912000] Buffer I/O error on device sdc, logical block 3994372
[65512.912000] Buffer I/O error on device sdc, logical block 3994373
[65512.912000] Buffer I/O error on device sdc, logical block 3994374
[65512.912000] Buffer I/O error on device sdc, logical block 3994375
[65512.916000] sd 17:0:0:0: [sdc] Device not ready: <6>: Sense Key : Not Ready [current] 
[65512.916000] : Add. Sense: No additional sense information
[65512.916000] end_request: I/O error, dev sdc, sector 3994369
[65512.916000] Buffer I/O error on device sdc, logical block 3994369
[65512.924000] sd 17:0:0:0: [sdc] Device not ready: <6>: Sense Key : Not Ready [current] 
[65512.924000] : Add. Sense: No additional sense information
[65512.924000] end_request: I/O error, dev sdc, sector 3994370
[65512.924000] Buffer I/O error on device sdc, logical block 3994370
[65512.924000] Buffer I/O error on device sdc, logical block 3994371
[65512.932000] sd 17:0:0:0: [sdc] Device not ready: <6>: Sense Key : Not Ready [current] 
[65512.932000] : Add. Sense: No additional sense information
[65512.932000] end_request: I/O error, dev sdc, sector 3994369
[65512.940000] sd 17:0:0:0: [sdc] Device not ready: <6>: Sense Key : Not Ready [current]