exfat on SD card getting mounted read-only

[Tod Merley]

fwiw

Googling " 03:01.2 SD Host controller: Ricoh Co Ltd R5C822
SD/SDIO/MMC/MS/MSPro Host Adapter (rev 21) "

nets a whole bunch of linux problems threads

Another silly thought.  Dust-Off the card reader bay.  If the switch
position detection is optically based perhaps dust or dirt could become a
problem.


On Mon, Aug 25, 2014 at 9:45 PM, Tim <ignored_mailbox at yahoo.com.au> wrote:

> Tod Merley wrote:
> >> my first guess
> >> write protect switch (tab)
>
>
> jd1008:
> > I tried with the switch in the up and the down position and tried to
> > mount.
> > In both cases I am getting:
> >
> > WARN: `/dev/mmcblk0p1' is write-protected, mounting read-only.
>
> Could be what senses the switch position in the reader isn't working.
> Are other cards mountable as writable, in the same reader?
>
> On SD cards, it's not really a switch, there's no electronics behind it,
> it's just an object that's felt, or looked through, in the reader.
> Rather like the record protect holes in old fashioned cassette tapes.
>
> --
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>
> Linux 3.15.10-200.fc20.i686 #1 SMP Thu Aug 14 16:12:39 UTC 2014 i686
>
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