MicroSD card mounts read-only

Preston Hagar prestonh at gmail.com
Mon Dec 29 17:01:21 UTC 2008

On Fri, Dec 26, 2008 at 2:41 AM, darkweasel <darkweasel at euirc.eu> wrote:
> Hello everyone,
> I recently (for Christmas) got a new 2GB MicroSD card and an adapter for
> it to use it with my SD card slot - in order to be able to transfer
> music from my computer to my Nokia 5300.
> However, no matter if I insert the new MicroSD card or the old 256MB one
> that came with my mobile phone, Ubuntu says it's read-only and doesn't
> let me transfer music to it. I already asked at the German support forum
> ubuntuusers.de but didn't receive an answer there.

Is it auto-mounting or are you using a mount command on the command
line?  If it is auto-mounting, look for an icon on your desktop for
the card, right click it, and then look for an option like "enable
writing on this device" or something similar.  Another option would be
to open a terminal, and do the following:


Look at the output and find the device for your card (probably
something like /dev/sdc1) and where it is mounted (probably something
like /media/disk).

Next, do the following:

$> sudo umount <card device>

where <card device> is the /dev/sdc1 or whatever you figured out from
the df command.

Then, remount it and go ahead and add in the -w (read/write) flag for
good measure:

$> sudo mount -w <card device> <mount point>

where <card device> is the same card device from before and <mount
point> is the mount point that was listed in the df command.
Hopefully this should remount it as read/write.  If you manually mount
the card (through the terminal), don't forget to unmount it (using the
umount command above) before removing it from your system.  Otherwise
you may have data loss or corruption.

Hope this helps,


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