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Morat
April 7th, 2009, 10:39 AM
Apologies if this has already been asked and answered before.

My 8.10 USB Boot stick, which I had been using for several weeks, has become unreadable and I need to get some data off it. Also, I'd like to know how I can prevent this in the future.

The stick is a 4gb PNY Micro Attache. It worked perfectly until a couple of days ago, half worked for about a day (stupidly, I did not concentrate on getting data off it!) and now it won't boot at all or even appear as a drive under Windows or Ubuntu.

If I do tail -f /var/log/messages and then plug it in, I get the following:


Apr 7 08:40:53 ubuntu kernel: [ 1796.072084] usb 3-4: new high speed USB device using ehci_hcd and address 7
Apr 7 08:41:24 ubuntu kernel: [ 1826.616191] usb 3-4: new high speed USB device using ehci_hcd and address 8
Apr 7 08:42:00 ubuntu kernel: [ 1862.976182] usb 3-4: new high speed USB device using ehci_hcd and address 9
Apr 7 08:42:31 ubuntu kernel: [ 1893.520283] usb 3-4: new high speed USB device using ehci_hcd and address 10
Apr 7 08:43:01 ubuntu kernel: [ 1924.064182] usb 3-4: new high speed USB device using ehci_hcd and address 11
Apr 7 08:43:12 ubuntu kernel: [ 1934.584183] usb 3-4: new high speed USB device using ehci_hcd and address 12
Apr 7 08:43:22 ubuntu kernel: [ 1945.260263] usb 2-2: new full speed USB device using uhci_hcd and address 10
Apr 7 08:43:53 ubuntu kernel: [ 1975.812178] usb 2-2: new full speed USB device using uhci_hcd and address 11
Apr 7 08:44:23 ubuntu kernel: [ 2006.356204] usb 2-2: new full speed USB device using uhci_hcd and address 12
Apr 7 08:44:34 ubuntu kernel: [ 2016.876179] usb 2-2: new full speed USB device using uhci_hcd and address 13

and then nothing after that. lsusb takes a long time and finally gives me this:


ubuntu@ubuntu:~$ lsusb
Bus 007 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 005: ID 0b97:7772 O2 Micro, Inc. OZ776 CCID Smartcard Reader
Bus 001 Device 004: ID 0b97:7761 O2 Micro, Inc. Oz776 1.1 Hub
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
ubuntu@ubuntu:~$


I installed it using [System]->[Administration]->[Create USB Startup Disk] so is should be set up so it doesn't hammer the drive shouldn't it? Having said that, the drive only cost me about 15 so it may not be that robust.

Any suggestions how I can get the data back from this stick and how to avoid the same problem in the future (maybe I should keep another stick for the data!)

--- Morat.