short-changed on SD card?
wblock at wonkity.com
Mon Feb 2 12:29:08 PST 2009
On Mon, 2 Feb 2009, William Bulley wrote:
> Thanks. According to the newfs(8) man page it is used only for BSD
> style file systems (ufs and ufs2).
> I am okay with the FAT16 formatted
> SD card, I'm just upset that I paid for a 2.0 GB card and ended up with
> what seems to be a 1.0 GB card. I would be happy if I could make the
> SD card look like this:
> slice 1 2.0 GB (well, 1920 MB if you insist)
> slice 2 <UNUSED>
> slice 3 <UNUSED>
> slice 4 <UNUSED>
It's generally not useful to slice/partition a small SD card. Without a
slice table, the whole device is just one slice.
Offhand I don't know if you can overwrite an existing slice table (boot
block) with just a 'newfs_msdos /dev/da1'. Probably.
If not, you can just 'dd if=/dev/zero of=/dev/da1 bs=512 cnt=1' and then
do the newfs_msdos.
If you plan to use that card in a camera, you are a little safer doing a
"full" or "low-level" format with the card in the camera. Some cameras
create and like not-quite-right filesystems. Older Canon cameras, for
Finally, there are more than a few reports of SD cards with false
capacities bought on ebay.
-Warren Block * Rapid City, South Dakota USA
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