Re: SD/MMC cards: how crappy they are?

From: Pavel Machek
Date: Fri Dec 26 2008 - 16:46:36 EST


> Pavel Machek wrote:
> >>>
> >> I have seen flash cards die permanently from having a partition table it
> >> didn't like written to it. Yes, the microcontroller on the flash card
> >> tried to interpret the partition table, assumed to be MS-DOS style, and
> >> would crash.
> >
> > Aha... that explains why I killed few flashcards by tar xzvf /dev/sdX files
> > ... hopefully thats fixed in the better/bigger cards now.
> >
>
> Also had a batch of cards which would silently "correct" the partition
> table for you to align the partitions to its flash erase blocks.

Can you mention the manufacturer/model? Silendt data corruption is a
nasty thing....
--
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(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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