[olpc-help] SD cards KNOWN to work in XO?

[Rafael Enrique Ortiz Guerrero]

Hi all,

is there a wiki page with a list of these SD compatible  cards?



On Feb 6, 2008 4:26 PM, Doug Jones <djsdl at frombob.to> wrote:

> I have now had a chance to play with multiple partitions on an SDHC card.
>
> I used a 16GB SDHC card from A-Data.
>
> I made two partitions on it, of roughly equal size.  The first is ext3,
> flagged bootable.  The second is FAT32.
>
> (I didn't do this on the XO.  I used a desktop machine, booted from a
> GParted LiveCD 0.3.4-8.  The biggest stumbling block was finding a USB
> camera card adapter that was compatible with SDHC  --  the dozens of
> adapters available at Frys did not include a single model that could do
> SDHC, but the two models I found at Target both worked!!    :-)
>
>
> After partitioning, I inserted the card into the XO.  Both partitions
> mounted automatically, and I can copy files back and forth between them
> from the command line.
>
> The Journal cannot see the ext3 partition.  But it does see the FAT32 one.
>
> (This does not make sense to me...   Why would they make a Linux-based
> file manager that cannot see an ext3 partition???)
>
>
> I have made no attempt to put a bootable OS on the card.
>
>
>
> Doug Jones wrote:
> > quixote wrote:
> >> We need a hardware compatibility list for SD cards, please!  I've had
> >> lots of troubles with cards, and I see scattered reports of others
> >> with similar problems.  Can anyone answer the following?  Or point me
> >> to the wiki page?  I can't find a summary anywhere of what works and
> >> what doesn't.
> >>
> >> Which SD cards have been successfully used in XOs?
> >> Which High Capacity cards are currently working?
> >>
> >> Which of the above cards have been formatted to ext3, not vfat, and
> >> work without a hitch?
> >>
> >> Has anyone successfully partitioned a SDHC card into an ext3 (linux
> >> boot) partition and a vfat (data) partition?  If yes, what make and
> >> model of card was it??
> >>
> >> I've seen a report that the A-Data 16GB works.  Anyone second that?
> >
> >
> > I can't second that, because I'm the one who reported it first.
> >
> > This card is still in my XO, and works fine.  df -h reports size = 15G.
> >  mount reports it is vfat.
> >
> > I have never tried to re-partition it, but am willing to try.
> >
> > Will report back shortly.
> >
> >
>
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-- 
Rafael Enrique Ortiz Guerrero
One Laptop Per Child
rafael at laptop.org
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