read only SD card

[Gary J. Kirkpatrick]

On Sun, May 11, 2014 at 12:28 PM, Gary J. Kirkpatrick <garyartista at gmail.com
> wrote:

>
>
>
> On Sun, May 11, 2014 at 12:20 PM, Colin Law <clanlaw at gmail.com> wrote:
>
>> On 11 May 2014 10:50, Gary J. Kirkpatrick <garyartista at gmail.com> wrote:
>> >
>> >
>> >
>> > On Sun, May 11, 2014 at 11:08 AM, Colin Law <clanlaw at gmail.com> wrote:
>> >>
>> >> On 11 May 2014 08:45, Gary J. Kirkpatrick <garyartista at gmail.com>
>> wrote:
>> >> > On Ubuntu 14.04 my SD card will open in read only mode.  This
>> happened
>> >> > suddenly.  The card has full read/write permissions on my netbook
>> >> > running
>> >> > 12.04.  I can not copy or write to it within 14.04 no matter where I
>> put
>> >> > the
>> >> > switch on the SD canrd.
>> >> >
>> >> > Sounds like a permigassions issue.  Any suggestions?
>> >>
>> >> Permigassions can certainly problematic.
>> >>
>> >> What does dmesg show about it after plugging it in?
>> >> If you right click a file there and look at Properties > Permissions
>> >> what does it show?
>> >>
>> >
>> > 1) In dmesg is there a way to limit the output to a device, in this case
>> > sda1?  This machine runs of an external hard drive.
>>
>> Not sure what you mean by limit the output to a device.  Do you mean
>> see the relevant bits of dmesg?  Is so then run dmesg with the card
>> out and see what the last messages are.  Plug the card in and run
>> dmesg again.  See what has been added.
>>
>> > 2) Permissions in nautical show owner as "Me" with Create and Delete,
>> Gary14
>> > with no permission to read write.  Gary14 is listed as a user but there
>> is
>> > no way to change any properties of this user.  Gary14 is the user name
>> on
>> > this computer.
>>
>> I presume you mean that it is showing Me as the owner and Gary14 as
>> the group, both with full permissions so that is ok.  I presume you
>> mean that it will not let you modify the permissions for the user or
>> the group, but since those are stored on the card that is not
>> surprising if it has mounted read only.
>>
>> Colin
>>
>
>
> Here is the output after I inserted the card:
>
> [21527.842962] usb 1-1.5: new high-speed USB device number 15 using
> ehci-pci
> [21527.951045] usb 1-1.5: New USB device found, idVendor=0bda,
> idProduct=0158
> [21527.951054] usb 1-1.5: New USB device strings: Mfr=1, Product=2,
> SerialNumber=3
> [21527.951059] usb 1-1.5: Product: USB2.0-CRW
> [21527.951063] usb 1-1.5: Manufacturer: Generic
> [21527.951066] usb 1-1.5: SerialNumber: 20071114173400000
> [21527.956466] ums-realtek 1-1.5:1.0: USB Mass Storage device detected
> [21527.969498] scsi17 : usb-storage 1-1.5:1.0
> [21528.969766] scsi 17:0:0:0: Direct-Access     Generic- Multi-Card
> 1.00 PQ: 0 ANSI: 0 CCS
> [21528.970111] sd 17:0:0:0: Attached scsi generic sg1 type 0
> [21529.685584] sd 17:0:0:0: [sda] 7829504 512-byte logical blocks: (4.00
> GB/3.73 GiB)
> [21529.687528] sd 17:0:0:0: [sda] Write Protect is on
> [21529.687537] sd 17:0:0:0: [sda] Mode Sense: 03 00 80 00
> [21529.689092] sd 17:0:0:0: [sda] No Caching mode page found
> [21529.689096] sd 17:0:0:0: [sda] Assuming drive cache: write through
> [21529.696107] sd 17:0:0:0: [sda] No Caching mode page found
> [21529.696114] sd 17:0:0:0: [sda] Assuming drive cache: write through
> [21529.697174]  sda: sda1
> [21529.702793] sd 17:0:0:0: [sda] No Caching mode page found
> [21529.702800] sd 17:0:0:0: [sda] Assuming drive cache: write through
> [21529.702805] sd 17:0:0:0: [sda] Attached SCSI removable disk
> [21532.102312] systemd-hostnamed[14798]: Warning: nss-myhostname is not
> installed. Changing the local hostname might make it unresolveable. Please
> install nss-myhostname!
>
>
> It says write protect is on, but it is not on the card itself.
>
> Gary14 has no permissions at all.  'Me' has all the permissions.
>
>
> garyk
>
>
Should I install hostname?   sudo apt-get install libnss-myhostname

garyk
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