MicroSD card mounts read-only

[darkweasel]

Jason Crain schrieb:
> On Mon, December 29, 2008 2:51 pm, darkweasel wrote:
>   
>> jackie wallen schrieb:
>>     
>>> you could try:
>>>
>>> try something like this:
>>>
>>> dev/sdc2       /media/card    auto    user,noauto,exec,rw,umask=0000 0 0
>>>
>>> if that doesn't work do you know what format the card is in? i know it's
>>> crazy but if it was formatted on a MAC you'll need to reformat it
>>> because Linux has a heck of a time mounting MAC formatted media rw.
>>>
>>>       
>> Doesn't work. It was formatted with a Nokia 5300 mobile phone, which
>> when formatting also removed all partitions for some reason (but it
>> didn't work either when it had one, i.e. as I got it from the factory).
>> But I cannot format or partition it from Ubuntu - GParted reports it's
>> read-only.
>>     
>
> Make sure you are root when using gparted.
Actually the system doesn't even allow me to run it without root.. ;)
>   A couple more things:  After
> you plug in the card, check the last few lines from the "dmesg" command. 
> Linux may change it to read only if it encounters errors from the device.
>   
[31788.888650] sd 6:0:0:3: [sde] 3842048 512-byte hardware sectors (1967 MB)
[31788.893145] sd 6:0:0:3: [sde] Write Protect is on
[31788.893155] sd 6:0:0:3: [sde] Mode Sense: 23 00 80 00
[31788.893162] sd 6:0:0:3: [sde] Assuming drive cache: write through
[31788.898145] sd 6:0:0:3: [sde] 3842048 512-byte hardware sectors (1967 MB)
[31788.902520] sd 6:0:0:3: [sde] Write Protect is on
[31788.902530] sd 6:0:0:3: [sde] Mode Sense: 23 00 80 00
[31788.902536] sd 6:0:0:3: [sde] Assuming drive cache: write through
[31788.902546]  sde:

> Also try running "mount" with no arguments.  It should show you if the
> device is mounted read only (ro)
>
>   

Yes, it does.
/dev/sde on /media/card type vfat 
(ro,nosuid,nodev,umask=0000,user=darkweasel)