SD cafd read only

[jd1008]

On 05/17/2015 01:09 AM, Bob Goodwin - Zuni, Virginia, USA wrote:
>
>
> On 16/05/15 22:37, jd1008 wrote:
>> All he has to do is read the card via dd like so:
>> dd if=/dev/sdX (X=[b,c,d,e,f,...etc] of=/dev/null bs=4M
>>
>> dd will then state how much it read.
>> -- 
> .
> The result from my notes:
>
>
> 2015-05-17
>
> read the card via dd like so:
>
> [root at box10 bobg]# dd if=/dev/sdf  of=/dev/null bs=4M
> 3798+1 records in
> 3798+1 records out
> 15931539456 bytes (16 GB) copied, 404.313 s, 39.4 MB/s
>
> dd will then state how much it read.    jd1008 at gmail.com
>
> Both show the same bytes but device is either 16GB or 14.9GB?
>
> [root at box10 bobg]# fdisk -l /dev/sdf
> Disk /dev/sdf: 14.9 GiB, 15931539456 bytes, 31116288 sectors
> Units: sectors of 1 * 512 = 512 bytes
> Sector size (logical/physical): 512 bytes / 512 bytes
> I/O size (minimum/optimal): 512 bytes / 512 bytes
>
>
> So it appears that the card is restored to it's full capacity. I will 
> try using it later, expect it to work.
>
> Bob
>
Excellent.
Enjoy.