Re: [gentoo-user] sdhc card on eeepc701 running gentoo

["Érico Porto" <ericoporto2008@gmail.com>]

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it is a 16GB class 10 Transcend, but the eeepc uses a usb card reader
inside of it - no mmc I think.

Actually, the first thing I tried to do with it was to format to ext2, and
then the formating proccess frozed in the middle of it.. I've tried to load
it in a windows pc after but couldn't read, and when I tried to format,
everything frozed - but it was a public computer, so I don't know if it
ever had a working card reader.

I've booted ubuntu in the eeepc now, and the card is shown in /dev/sdc1,
but I can't edit it using disk utility - it gives me error calling
fsync(2), on:/dev/sdc: input/output error. But on ubuntu I don't see no
dmesg error msgs like the ones I see on gentoo just by plugin it on the
port.

Is there any disk error checking utility in gentoo or ubuntu?


Érico V. Porto


On Wed, Nov 16, 2011 at 6:03 PM, Paul Hartman <paul.hartman+gentoo@gmail.com
> wrote:

> On Wed, Nov 16, 2011 at 12:32 PM, Érico Porto <ericoporto2008@gmail.com>
> wrote:
> > Hello,
> >
> > I'm having lots of hardware error current when trying to use a sdhc card
> > (transcend 16GB) on my eeepc701. I have never used any card on gentoo
> > before, but I have used with success previously in Ubuntu.
> >
> > Is there some know bug?
> >
> > Also, only sometimes I get a device at /dev/sdb and couldn't get any
> > /dev/sdb1 to show, but I do see it using fdisk /dev/sdb and them
> pressing p.
>
> I have a USB card reader that only worked if I issued "hdparm -z
> /dev/sdX", for some reason the device only worked after the second
> time it was initialized. I don't know if you're using USB or MMC
> interface for your card reader but maybe you can try it.
>
> I have another device that used the MMC driver, it didn't work
> properly with fast cards (above class 4) -- massive corruption every
> time -- the "fix" was to hardcode the DTO value of 0xA in the mmc
> driver (instead of dynamic calculation), after that it worked fine...
>
>

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