Re: Permissions

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Author: Michael Havens
Date:  
To: Main PLUG discussion list
Subject: Re: Permissions
I have no problem writing to SD cards with Mint17.

On Mon, Jan 18, 2016 at 9:28 AM, Matt Graham <> wrote:

> On 01/16/2016 08:03 PM, dad wrote:
>>>
>>>> Mint 17.3. 8 gig micro card and named the owner dad. [...]
>>>> I installed a program called sound converter to convert the offensive
>>>> files. The micro card will NOT let me add or delete files to it.
>>>>
>>> On Sat, Jan 16, 2016 at 10:59 PM, Brian Cluff <> wrote:
>>
>>> Did you accidentally flip the little switch on the side of the SD
>>> card that puts it in write protect mode?
>>>
>>
> That was my first thought, but that's apparently not the problem.
>
> On 2016-01-17 17:32, Snyder, Alexander wrote:
>
>> By default, storage devices that are plugged into the system mount
>> automatically in the /media/<username> directory.
>>
>
> Some distros do this. Mint is probably one of them.[0] Most
> removable-media SD cards have a FAT32 filesystem on them, and FAT doesn't
> actually have Unix-style permissions. These are faked at mount time
> according to the automounter's configuration, and generally the user who's
> logged in should be able to read and write the files on the mounted medium.
>
> So: Unplug the device, then plug it in again and immediately do "dmesg |
> tail -n 40". This'll tell you what the kernel thinks is going on with the
> SD card. It might think the filesystem is damaged and so it's mounting it
> read-only, or something.
>
> [0] I don't think automounters are a good idea for various reasons.
>
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