Copying A Disk

[Pete Holsberg]

On Fri, 11 Jul 2008 19:55:05 -0500, Chris Mohler wrote:

> Pete:  I would connect the usb and take a look at the end of
> /var/log/messages and see what happens.  If it mounts successfully, the
> log should give you the usb device.  

Here's the tail of /var/log/messages:

Jul 11 21:32:30 Ubu kernel: [ 5810.918514] usb 4-2: new high speed USB 
device using ehci_hcd and address 3
Jul 11 21:32:30 Ubu kernel: [ 5811.052119] usb 4-2: configuration #1 
chosen from 1 choice
Jul 11 21:32:31 Ubu kernel: [ 5811.646727] usbcore: registered new 
interface driver libusual
Jul 11 21:32:31 Ubu kernel: [ 5811.717880] Uniform Multi-Platform E-IDE 
driver Revision: 7.00alpha2
Jul 11 21:32:31 Ubu kernel: [ 5811.718022] ide: Assuming 33MHz system bus 
speed for PIO modes; override with idebus=xx
Jul 11 21:32:31 Ubu kernel: [ 5811.779137] Initializing USB Mass Storage 
driver...
Jul 11 21:32:31 Ubu kernel: [ 5811.779923] scsi2 : SCSI emulation for USB 
Mass Storage devices
Jul 11 21:32:31 Ubu kernel: [ 5811.780891] usbcore: registered new 
interface driver usb-storage
Jul 11 21:32:31 Ubu kernel: [ 5811.781249] USB Mass Storage support 
registered.
Jul 11 21:32:36 Ubu kernel: [ 5816.769010] scsi 2:0:0:0: Direct-
Access                                    PQ: 0 ANSI: 2 CCS
Jul 11 21:32:36 Ubu kernel: [ 5816.770911] sd 2:0:0:0: [sdb] Attached 
SCSI disk
Jul 11 21:32:36 Ubu kernel: [ 5816.770980] sd 2:0:0:0: Attached scsi 
generic sg3 type 0


> At that point, you should unmount the drive 

No idea what arguments to use with umount! Sorry.

> and then perform the dd operation.  If it doesn't mount, you
> may get some clues as to why the disk is acting up.
> 
> Also, if the drive contains corrupt data or unreadable sections, you may
> have better luck with ddrescue as opposed to dd.

Thanks.