[arch-general] Arch linux doesn't recognises micro SD card

[Guus Snijders]

Op 26 feb. 2015 19:58 schreef "Csányi Pál" <csanyipal at gmail.com>:
>
> 2015-02-26 19:25 GMT+01:00 Sean Greenslade <sean at seangreenslade.com>:
> > On Thu, Feb 26, 2015 at 06:41:24PM +0100, Csányi Pál wrote:
> >> I tried these steps by using Gparted too, but at this step Gparted
> >> can't read partitions from the during read on
> >>
> >> /dev/mmcblk0
> >>
> >> Gparted gives the error message:
> >> I/O error during read on /dev/mmcblk0
> >>
> >> What can I do to solve this problem?
> >
> > Your hardware has issues, and I don't think any software will fix it. My
> > guess is that the issue is in one of three places:
> >
> > 1: Your SD card is damaged / broken. To test this, try it in
> > a known-working reader. Note that Windows will not understand Linux /
> > RPi partitions (but should be able to at least see the boot partition).
>
> I can mount it's first partition, that with FAT32 type filesystem.
> I can't only format it's second partition, with ex4 type filesystem.
>
> Still does it mean that the uSD card is damaged?
>
> > 2. If you're using a microSD to SD adapter, I've seen plenty of those be
> > flaky and crappy. Try a different adapter, or get a reader that supports
> > uSD directly.
>
> Yes, I'm using a microSD card to SD adapter. I shall try another brand
> of SD adapter, that I have.
>
> > 3. The reader is broken. Since it's the built-in one on the laptop, the
> > only way to test this is to try a different card / try on a different OS
> > (live boot USB drives are useful for this).
>
> I shall try that too.

One thing I ran into was the difference between sd versions; sdhc cards
wont work in an (standard) sd reader. I don't know how to check the reader
from Linux, but it's probably in the hardware specs.

Mvg, Guus