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

From: H. Peter Anvin
Date: Thu Dec 04 2008 - 14:03:56 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.

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at