Am Mittwoch, den 25.03.2009, 11:30 +0100 schrieb Michael Schnell: > > My SD card is getting corrupted after issuing the reboot command and > > de-powering the board. > Are you sure it was unmount before shutting down the system ? > > BTW.: > Even if you do unmount it you are not safe. An SD-Card (like all similar > flash media) does an internal wear leveling. This can take an > unspecified amount of time after any write request. If you de-power the > SD-Card before this timespan is over it might be corrupted. Not only the > newly written data might be corrupt but any data on the card. I ever > read reports claiming that it can get so seriously corrupted that it > could not be formatted any more and a low-level formatting with a > special tool was necessary. > > -Michael
Hi Michael, that sounds like SD cards cannot be used for anythiing serious. I'd like to know if this applies to industrial SD cards as well. What is the source of the information that you have? I'd really like to see that!! -Erwin _______________________________________________ uClinux-dev mailing list [email protected] http://mailman.uclinux.org/mailman/listinfo/uclinux-dev This message was resent by [email protected] To unsubscribe see: http://mailman.uclinux.org/mailman/options/uclinux-dev
