[ubuntu-uk] Missing write-protect tab on Secure Digital SD card causing read-only?

[Matthew Daubney]

On Wed, 2009-05-20 at 11:39 +0100, Andrew Oakley wrote:
<snip>
> Thanks. I tried the fsck, even after unmounting it failed as the device
> was considered read-only. Ditto unmounting then attempting to reformat
> on the Linux box, fails as read-only. I even reformated it cleanly on
> the MS-Windows machine. Still Linux box complains read-only.
> 
> Therefore I'm reasonably sure that it is the notch or the lack of tab
> which is causing the problem. The question is, which machine is correct;
> should an SD card which has a notch, but has no tab, be considered
> read-only? I'm wondering whether the card is faulty by design, since it
> has a notch but no tab (ie. if the card has a notch, it should have a
> tab). Or whether my card reader is faulty by design for insisting on a
> tab that need not be there.
<snip>

Do you have another linux machine to try it on? Or a live cd to try it
on another machine with a different card reader? Whats the make/model of
the SD card? Worth finding whether it's the card or the reader that's at
fault.

-Matt Daubney
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