need help to format a 8gb sdcard to 2gb fat16

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pete...@gmail.com

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Mar 22, 2014, 1:49:00 AM3/22/14
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Im trying to format 8gb sdcard to fat16 2gb. Having no end of problems.
Whats the simplest way on windows 7
The rumba wont recognize a fat32 or ntsfs
thanks
Peter Zwag

Michael Sullivan

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Mar 22, 2014, 2:16:37 AM3/22/14
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David Payne

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Mar 22, 2014, 4:18:10 AM3/22/14
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(Pointless otherwise except for cats to ride on.)


Did you create 1 or more 2G partition(s) on the SD card?

(Posted 2014 March 22, b4 19:19)
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peter zwag

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Mar 25, 2014, 7:30:40 PM3/25/14
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Hi Michael,
sdformater doesnt have option for fat, uses fat16 by default.
Any tips or alt programs?
thanks
Peter Zwag


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Robert Powers

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Mar 25, 2014, 8:02:36 PM3/25/14
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I thought you were after FAT16. 

I haven't known anything for a very long time to use the original 8-bit FAT if that's what you're referring to. fdisk in MS-DOS is the only way I remember to create a FAT12 partition...

Cheers,
Bob




Toby Corkindale

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Mar 25, 2014, 8:59:03 PM3/25/14
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On 26 March 2014 10:30, peter zwag <pe...@zwag.id.au> wrote:
> Hi Michael,
> sdformater doesnt have option for fat, uses fat16 by default.
> Any tips or alt programs?

Shouldn't be a problem to setup in Linux; you can ask fdisk to lie
about card size, and mkfs.msdos also lets you select which FAT table
type to use (12, 16 or 32 bit).

peter zwag

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Mar 25, 2014, 9:06:18 PM3/25/14
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Hi Toby
I have no linux till i get my pi going.
Worse case I will bring into cchs monday night


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Steve Oxley

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Mar 25, 2014, 8:12:27 PM3/25/14
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Hi all,

It’s common to interchange “FAT” and “FAT16”, leading to confusion with FAT32 (which is also referred to as “FAT”). I don’t think FAT12 is the solution here - it tops out at partition sizes of 32 MBytes.

To the original poster (Peter?), you will need to partition the SD card before you can format it. As David asked - create a 2 GByte partition and then format that as FAT16.


Cheers,
Steve

On Wed Mar 26 2014, Bob wrote:
> I thought you were after FAT16.
> I haven't known anything for a very long time to use the original 8-bit FAT if that's what you're referring to. fdisk in MS-DOS is the only way I remember to create a FAT12 partition...
> Cheers,
> Bob

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peter zwag

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Mar 26, 2014, 7:25:08 PM3/26/14
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IM stuck but have ordered a 2gb card from china. Is fat12 a typo? Bottom line is my rumba and electronic dog project can only work with fat16
I hope to bring my sdcard on monday, but will use the 2gb card whn it arrives. Its not worth spending all this time on the issue as long as one can still buy cards as low as 2gb
thanks for the reply
Peter Zwag


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Robert Powers

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Mar 26, 2014, 9:57:36 PM3/26/14
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Is fat12 a typo?
No, but as noted above, it also isn't what you're after - http://en.wikipedia.org/wiki/File_Allocation_Table

Its not worth spending all this time on the issue as long as one can still buy cards as low as 2gb
If your 2Gb card comes formatted with something else/unformatted, you're going to have exactly the same problem. 

Windows has a built-in utility for managing partitions. Ok, it's limited to NTFS and FAT16/32, but you've already got everything you need: http://www.howtogeek.com/101862/how-to-manage-partitions-on-windows-without-downloading-any-other-software/ 

Cheers,
Bob



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