how tochange an iso sd card to a data storage sd card?

English Hardware
1

i have an sd card.
this sd card is a bootable sd card for installing linux opensuse 13.1

i erased the mbr
i erased all partitions

i created a fat32 partition using all the space.

but when i insert the sd card in the sd card reader
then
device notifier notifies there is a “openSUSE-13.1-DVD-x86_640084” storage volume

How to erase this name “openSUSE-13.1-DVD-x86_640084”

thanks

2

That is what you say. But how can we be able to check if you did it correct when you do not tell what you did?

3

i erased the mbr with
dd if=/dev/zero of=/dev/sdg bs=446 count=1

i erased partitions and i created a fat32 partition with yast disk manager

4

The dd looks fine imho, but I would have used a larger blocksize (at least 512) to also erase the partition table completely.

I do not know why you erased the partitions (also using dd?). When you erase the MBR part of the first block and then erase all the partitions behind it, only the partition table part of the first block (of 512) is still untouched. why not erasing then all of the device?

5

yes but how to make disappear “openSUSE-13.1-DVD-x86_640084” ?

6

As root:

fdisk /dev/sdx
x
i
(type your new Name in---Enter)
r

If you now type

w

it will be saved,

q

will quit without saving.

7

@sauerland

thanks

but i don’t want any new name. i want to erase the name “openSUSE-13.1-DVD-x86_640084”

i want the sd card in the state i got it when i bought it.

8

type in no name, only enter?

9

Maybe we should start with taking a look at the disk (all of us) by you posting

su -l -c 'fdisk -l'

And I am still not sure you now did a complete wipe of the first 512 bytes of the disk as I suggested.

10

the method for non techie:

i use gparted

insert the sd card
do not mount the sd card
launch gparted
select the sd card

in the menu “devices” select “create partition table”
choose “msdos” then click “apply”

in the menu “partition” choose “New”
select format “fat32”
let the other parameters unchanged (=choosed by gparted)
then click “add”

in the tool bar click the “apply” button"

right click on the new partition
select “manage flags”
check “lba”
then click “close”

note: you don’t get the virgin state equal to this one when you bought it but this is sufficient for me.

why it is not the virgin states?

  • because of the used technology it remains parts of your data
  • i am not sure the mbr added when creating an iso sd card is erased

thanks to everybody