I have a 2GB SD card that a medical device writes data to daily. I view the data periodically myself to keep tabs on things. To do so I just insert the card in the card reader slot in my laptop, whereupon it appears grayed out in Xfce's "Places" widget. By right-clicking I can mount it and then view the data. As far as I know it is formatted FAT32.
The other day, concomitant with the soda in the keyboard disaster, it no longer appears in the Places widget. However, the medical device still recognizes it and appears to be continuing to write data to it. And dmesg sees it, albeit with an error message: [198579.916202] mmc0: new high speed SD card at address b368 [198579.916537] mmcblk0: mmc0:b368 SD02G 1.76 GiB [198579.918556] mmcblk0: unknown partition table I also tried using an external USB card adapter, but I still can't mount the card. The results in dmesg are different, however: [199653.623925] Read(10): 28 00 00 00 00 00 00 00 08 00 [199653.625085] sd 8:0:0:0: [sdd] Unhandled sense code [199653.625087] sd 8:0:0:0: [sdd] [199653.625087] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [199653.625088] sd 8:0:0:0: [sdd] [199653.625089] Sense Key : Medium Error [current] [199653.625090] sd 8:0:0:0: [sdd] [199653.625091] Add. Sense: Unrecovered read error [199653.625092] sd 8:0:0:0: [sdd] CDB: [199653.625093] Read(10): 28 00 00 00 00 00 00 00 08 00 >From past experience, if I reformat it the medical device will throw a fit, but then offer to reformat it. I suspect that it reformats it and also writes some key files that the device needs in order to recognize it. I have not yet reformatted it because if I do I will lose several days worth of data - the medical device stores no data internally. I am curious why the medical device can seemingly write to the card, but Xubuntu 13.10 cannot even mount it, and what might have gone wrong to cause the problem. Perhaps the results from dmesg will mean something to someone here. _______________________________________________ PLUG mailing list PLUG@lists.pdxlinux.org http://lists.pdxlinux.org/mailman/listinfo/plug
