usb drive reconnect after power interruption

[John Abreau]

dsr at tao.merseine.nu wrote:
> On Tue, Apr 25, 2006 at 02:45:09PM -0400, John Abreau wrote:
>> I have a VMware guest OS on a usb2 external drive, and a short time ago 
>> the office lost power for a couple minutes. When power came back on, my 
>> laptop saw the usb drive as a brand new drive, and won't mount it under 
>> its old id. Meanwhile, the system is holding on to the old id so it can 
>> eventually flush its I/O to disk.
>>
>> Is there any way I can tell the system that the usb drive I'm plugging 
>> in is the same one it needs to flush the data to? Or is that data just 
>> lost forever at this point?
> 
> At this point, you may be hosed. I'm not sure that specifying
> mount points by volume id would help in future, but it might.
> 
>  mount -L label  or
>  mount -U UUID

The drive originally got recognized as /dev/sdb, and mounted with its 
label as /media/OneTouch. After the power outage, VMware had unwritten 
I/O waiting for the drive, and the drive instead got loaded as /dev/sdc 
and mounted as /media/OneTouch1.

By the time I'm able to mount the drive, it's already past the point 
where it's decided the drive is /dev/sdc and not /dev/sdb. I was hoping 
there was some way to make it recognize that the drive is the same 
/dev/sdb it's waiting for, when I power up the drive.

-- 
John Abreau / Executive Director, Boston Linux & Unix
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