Can't read/mount SD flash memory card in builtin reader.

[Richard Shaw]

2008/6/23 Mikkel L. Ellertson <mikkel at infinity-ltd.com>:
> Richard Shaw wrote:
>>
>> I am having trouble getting Fedora 9 (x86_64 live cd) to read my SD
>> card using a built-in Ricoh MMC reader on an HP 8510 laptop (Core 2
>> Duo). I get mmcblk0 and mmcblk0p1 in /dev but any attempt to read the
>> card fails. I see an icon in Nautilus but after opening it and a brief
>> pause I get an error "Can't read superblock". Also, any attempt to
>> inspect the device in parted or fdisk also fail. They both complain
>> about lables but I'm not sure if they are talking about filesystem
>> labels or volume lables. I can't see why the latter would cause an
>> issue. I tried the mklabel command in parted setting it to msdos but
>> it couldn't complete... I'm in Windows XP right now and it's reading
>> it fine.
>>
> What do you get if you run "parted -l /dev/mmcblk0"?
>
> What does running "lsmod | egrep 'mmc|ricoh|sdhci'" produce?
>
> It sounds like the reader may be in the wrong mode. But my experience is
> with the TI version of the built-in reader. It is also possible that the
> ricoh_mmc module is not being loaded.
>
> Mikkel

I'll try those when I get home... I tried doing a modprobe ricoh_mmc
but I'm not very knowledgeable about the kernel and wasn't sure if I
should remove other modules first.Didn't see anything helpful in
/var/log/messages or dmesg.

Richard