On Sun, Aug 02, 2009 at 09:47:22AM +1000, James Cameron wrote:
My point is that this stick is too unreliable for regular use. Normal filesystems (ext3 et al.) aren't fault-tolerant.This means that a particular block could not be read from the device, either due to a communication problem between your CPU and the device, or because the device itself has the block marked as flawed.
Care to elaborate? Why would it return a non-zero error code, but not print an error message?Actually, it is better to say if it is successful then the return status will be zero. Judging only by the size of the data or the lack of error messages is not as reliable.If it's sucessfull, the whole stick will have been read:
Cause of the flaw? Either a block has deteriorated to the point that it cannot be read (the lifetime is not infinite), or it was erased as partI can rule both out as the same stick reads fine on a different computer (both results are repeatable, so not just an intermittent error). It's the USB interface that's unreliable, not the NAND (=storage). The stick hasn't ever been used (by me), BTW - only written once by Caroline. So tear cannot be an issue.of being written but the write did not complete.
CU Sascha -- http://sascha.silbe.org/ http://www.infra-silbe.de/
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