reggie4
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1.7gb on a 4gb card

Wed Jan 15, 2014 2:28 pm

I have a working image on my 4GB card, but wanted to try a different image so:
1) I backed up the old image, using win32discimager

2) Formatted the card using sdformatter v4.0, with format size adjustment "on"

Unfortunately the size box was 1.17 GB and whatever i did, i couldn't change the size to 4GB.

Now when i try and copy, using win32discimager, the new image to the sd card it fails to copy because i haven't enough space on the card!

I seem to remember this happening before, but i cannot remember how to reformat it to 4GB, Please could someone help me reformat to 4GB,

thanks

Reggie.

lazarus78
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Re: 1.7gb on a 4gb card

Wed Jan 15, 2014 7:10 pm

Just re-format the SD card with... anything, as Fat32.

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FTrevorGowen
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Re: 1.7gb on a 4gb card

Wed Jan 15, 2014 7:26 pm

The SDA's formatting tool should "do the job" - but you need the "FULL (Overwrite) FORMAT" setting as well as "FORMAT SIZE ADJUSMENT ON" (as shown in the screenshots here: http://www.cpmspectrepi.webspace.virgin ... 121XP.html)
Trev.
Still running Raspbian Jessie on some older Pi's (an A, B1, B2, B+, P2B, 3xP0, P0W) but Stretch on my 2xP3A+, P3B+, P3B, B+, A+ and a B2. See: https://www.cpmspectrepi.uk/raspberry_pi/raspiidx.htm

Joe Schmoe
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Re: 1.7gb on a 4gb card

Wed Jan 15, 2014 7:35 pm

Wouldn't it be easier just to do:

dd if=/dev/zero of=/dev/sdb count=1

Then stick the card in your digital camera...?

(The 'dd' command may or may not be necessary, depending on your camera, but it can't hurt...)
And some folks need to stop being fanboys and see the forest behind the trees.

(One of the best lines I've seen on this board lately)

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DougieLawson
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Re: 1.7gb on a 4gb card

Wed Jan 15, 2014 7:41 pm

Filling the card with zeros is a Very Bad Idea®. There's a difference between a byte with zero and a never used byte on an SDCard when it comes to wear levelling.

It's easier to use
fdisk -l /dev/sda # to delete all partitions and create a single type 0x0C primary partition
mkfs.vfat /dev/sda1

Or use the SD Formatter on Windows.
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reggie4
Posts: 81
Joined: Wed Jan 15, 2014 2:09 pm

Re: 1.7gb on a 4gb card

Thu Jan 16, 2014 7:01 pm

Hi all and thanks for all your suggestions,

I remembered before that I re-formatted it within my camera and it worked; so i tried it again and bingo!

Dougie you say
It's easier to use
fdisk -l /dev/sda # to delete all partitions and create a single type 0x0C primary partition
mkfs.vfat /dev/sda1
, is this within windows via cmd?

Thanks for your help,

Reggie.

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DougieLawson
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Re: 1.7gb on a 4gb card

Thu Jan 16, 2014 7:56 pm

I do all my SDCard stuff on either my RPi or my Ubuntu system. Windows isn't smart enough to see the filesystems and read/write/fix/damage them. Windows is very good at ignoring lots of the useful megabytes on a RPi SDCard.
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