SD cafd read only

Bob Goodwin - Zuni, Virginia, USA bobgoodwin at wildblue.net
Sun May 17 07:09:28 UTC 2015



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

-- 
Bob Goodwin - Zuni, Virginia, USA
http://www.qrz.com/db/W2BOD
box10  FEDORA-22b/64bit LINUX XFCE



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