Copying Data To USB Flash Drive

[Sajan Parikh]

Thanks. 

When I say "absurdly long", I mean Nautilus tells me it's finished. Then Ubuntu says no, without any sort of progress. 

So it's just a bit frustrating as writing files to my drive is the last thing I do before leaving. I have to sit there an unspecified amount of time without even a progress bar to keep me entertained. 

Thanks for the explanation though. 

Sajan Parikh

Sent from my mobile phone. Please excuse my brevity. 

> On Feb 25, 2014, at 4:34 AM, Colin Law <clanlaw at gmail.com> wrote:
> 
>> On 25 February 2014 09:21, Sajan Parikh <sajan at parikh.io> wrote:
>> I've been using Ubuntu for years now, but have only recently started to use
>> USB flash drives for larger files.  Usually things are sync'd on my NAS.
>> 
>> I've noticed when I copy about 5GB of data, the transfer progress window
>> shows that it goes really fast and is complete.  However, when I go to eject
>> the drive, I get the message, "Don't Unplug...".
>> 
>> I then have to wait an absurdly long, unpredictable time before the message
>> "You can unplug...".
>> 
>> I assume it's writing to some sort of buffer at first, and only flushing to
>> disk when I try to eject.
>> 
>> Is there any way for me to write directly to the disk, or at least get some
>> sort of progress on when I can **actually** unplug my drive?
> 
> It is not that it is waiting to start before you ask to eject the
> device but that the write to flash has not yet completed, so you must
> keep the power on the device till it is finished.  When you say
> absurdly long, note that it can take 10 minutes or more to write 5GB,
> depending on the speed of the flash.  If the device you are using was
> previously much quicker then it is possible that the flash is failing.
> Also it may take longer if you are deleting large amounts of data
> prior to the write and/or there is not much space left on the device.
> 
> Colin
> 
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