2008/6/23 Mikkel L. Ellertson <mikkel(a)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.
Well, now that it WORKS here's some info...
Output of partd -l /dev/mmcblk0:
Model: Unknown (unknown)
Disk /dev/mmcblk0: 1024MB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 31.7kB 1024MB 1024MB primary fat16 boot
[root@localhost fedora]# /sbin/lsmod | egrep 'mmc|ricoh|sdhci'
mmc_block 18688 2
ricoh_mmc 12544 0
sdhci 23564 0
mmc_core 52800 2 mmc_block,sdhci
I don't remember ricoh_mmc loading last time... The only thing I can
think of that I did differently was boot up with the media in the
slot... must have made it load the ricoh_mmc module.