SD cafd read only -

[jd1008]

On 05/16/2015 02:56 PM, Bob Goodwin - Zuni, Virginia, USA wrote:
>
>
> On 16/05/15 16:44, jd1008 wrote:
>>
>>
>> On 05/16/2015 02:28 PM, Bob Goodwin - Zuni, Virginia, USA wrote:
>>>
>>>>
>>>> Also, have you ever copied to it, using dd,  an iso image
>>>> of a bootable cd-rom or dvd-rom?
>>> Yes, the F-21 XFCE Live spin, that's apparently what triggered this?
>>>
>> THAT's WHY it is read only.
>>
>> If you want to EVER mount it as rw, then you have to
>> destroy what you have installed on it, by doing this as root:
>>
>> dd if=/dev/zero of=/dev/sdh bs=4M
> .
> [root at box10 /]# dd if=/dev/zero of=/dev/sdh bs=4M
> dd: error writing ‘/dev/sdh’: No space left on device
> 932+0 records in
> 931+0 records out
> 3906453504 bytes (3.9 GB) copied, 4.51131 s, 866 MB/s
>
>
> That doesn't touch it either ...
>
>
>
>>
>> When done, then you can use fdisk or gparted (or the text based parted)
>> to partition the sd card.
>> Once done, you can mount the partitions rw.
>>
>
What is the size of the SD card?