[SATLUG] Firefly 4 GB Flashdrive - unreadable

Ernest De Leon edeleonjr at gmail.com
Fri Apr 18 10:31:19 CDT 2008

what does your dmesg say when you connect it?

On Fri, Apr 18, 2008 at 5:48 AM, Stephen Gutknecht (RoundSparrow) <
stephen at roundsparrow.com> wrote:

> Kind of a long rambling observation; mostly theory as I I've had the same
> experience about a dozen times over the past 3 years.
> Flash drives just seem fragile to me in how you use them. I've had 2GB SD
> that works perfectly fine in a digital camera a dozen times - pop it into
> a
> computer and try to use for an OS project - and it corrupts or goes bad.
> Both USB Flash and SD Cards have done this to me, even reputable brands
> like
> Kingston and Lexar.
> Putting a 'defunct' SD card back into a diigital camera and it won't
> format
> -  I conclude something got corrupt.
> And I'm not talking any abusive (heavy writing) behavior such as putting
> swap files or heavy writes.  it is more like they are fragile in what file
> system they expect or even unexpected repartitioning causes them grief.
> >From what I understand, some of these flash have a buffer/cache area so
> they
> are fast for a smaller amount of space.  Maybe it is this logic or the
> level
> wearing?  It almost seems like these things have firmware in them and it
> is
> just buggy in some assumptions it makes.  Many have flashing LEDs to show
> activity and similar features - so maybe it is indeed firmware issues.
> Anyway - I've had it happen.  I've seen some utilities that are supposed
> to
> low level format - but I've never seem to be able to recover one once it
> corrupts. I either exchange them or toss them away.  And it seems very
> model
> speciifc.  A Lexar 1GB I get 6 month earlier works fine, but some newer
> model 2GB corrupts on the first few uses to try and do OpenBSD or Linux.
> Very frustrating.
> SanDisk is supposed to be one of the better ones for 'sophisticated PC
> usage' in terms of their firmware.  But I had it happen on a 1GB SanDisk
> SD
> card I tried a couple weeks ago.  I've just gotten kind of gun shy about
> trying to use flash for anything that needs to alter the format or
> partitions - as they just give you grief.
> My conclusion:  Many of these devices have buggy firmware that makes a lot
> of incorrect assumptions about the format/filenames/layout/directory
> structure of the disk - and they just crash internally if something gets
> on
> them that they don't expect.  And I've found no way to 'reset them' once
> this happens - as the crash in such a way that you can't even get their
> firmware to allow writing/format.
>  Stephen Gutknecht
>  South Austin and Canyon Lake
>  http://twitter.com/RoundSparrow
> On Fri, Apr 18, 2008 at 12:52 AM, John Chalinder <argiod at bresnan.net>
> wrote:
> > I have a Lexar Firefly 4GB flash drive that, while 'properties' tells me
> > it's ok, and my laptop recognises what sort of a drive it is, it will
> not
> > respond to any action.
> >  I've tried formatting, I've tried ejecting, I've tried checking for
> > errors. Nada, zip, zero response. Can't even change its name.
> >
> > Any idea what could be wrong with this device, and how/if it can be
> fixed?
> > It cost me around $60 and it's been too long to take it back to the
> store
> > and refund/exchange it.
> >
> > Maybe it doesn't like Ubuntu Linux formatting...? Maybe it doesn't like
> to
> > be reformatted at all.
> >
> --
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Ernest de Leon

"They who can give up essential liberty to obtain a little temporary safety
deserve neither liberty nor safety." - A common 18th Century sentiment
voiced by Benjamin Franklin

"A patriot must always be ready to defend his country against his
government." - Edward Abbey

"All that is necessary for evil to triumph is for good men to do nothing." -
Edmund Burke, English statesman and political philosopher (1729-1797)

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