exfat on SD card getting mounted read-only

[Tod Merley]

My card is a Samsung 32 EVO Micro SD HC I held in an SD adapter and used
and formatted by my Nikon camera.

[tmerley at localhost ~]$ journalctl -f
-- Logs begin at Mon 2014-08-25 06:16:28 PDT. --
Aug 25 20:28:07 localhost.localdomain dhclient[1015]: ...
... ... [starting line just before SD card plugged in] ...
Aug 25 20:23:00 localhost.localdomain gnome-session[1411]: Window manager
warning: Log level 8: meta_window_focus: assertion '!window->overr... failed
Aug 25 20:24:27 localhost.localdomain kernel: mmc0: cannot verify signal
voltage switch
Aug 25 20:24:27 localhost.localdomain kernel: mmc0: new ultra high speed
SDR50 SDHC card at address 0001
Aug 25 20:24:27 localhost.localdomain kernel: mmcblk0: mmc0:0001 00000 29.2
GiB
Aug 25 20:24:27 localhost.localdomain kernel:  mmcblk0: p1
Aug 25 20:24:28 localhost.localdomain kernel: SELinux: initialized (dev
mmcblk0p1, type vfat), uses genfs_contexts
Aug 25 20:24:28 localhost.localdomain udisksd[1516]: Mounted /dev/mmcblk0p1
at /run/media/tmerley/NO_NAME on behalf of uid 1000
Aug 25 20:25:08 localhost.localdomain NetworkManager[640]: <warn>
nl_recvmsgs() error: (-33) Dump inconsistency detected, interrupted
... [ending one line after SD card plugged in] ...
... [unmount remove re-insert] ...
Aug 25 20:42:54 localhost.localdomain udisksd[1516]: Cleaning up mount
point /run/media/tmerley/NO_NAME (device 179:1 is not mounted)
Aug 25 20:42:54 localhost.localdomain udisksd[1516]: Unmounted
/dev/mmcblk0p1 on behalf of uid 1000
Aug 25 20:43:32 localhost.localdomain kernel: mmc0: card 0001 removed
Aug 25 20:43:36 localhost.localdomain kernel: mmc0: cannot verify signal
voltage switch
Aug 25 20:43:36 localhost.localdomain kernel: mmc0: new ultra high speed
SDR50 SDHC card at address 0001
Aug 25 20:43:36 localhost.localdomain kernel: mmcblk0: mmc0:0001 00000 29.2
GiB
Aug 25 20:43:36 localhost.localdomain kernel:  mmcblk0: p1
Aug 25 20:43:36 localhost.localdomain kernel: SELinux: initialized (dev
mmcblk0p1, type vfat), uses genfs_contexts
Aug 25 20:43:36 localhost.localdomain udisksd[1516]: Mounted /dev/mmcblk0p1
at /run/media/tmerley/NO_NAME on behalf of uid 1000


[tmerley at localhost ~]$ dmesg
... ...
[  202.037022] mmc0: cannot verify signal voltage switch
[  202.134193] mmc0: new ultra high speed SDR50 SDHC card at address 0001
[  202.160009] mmcblk0: mmc0:0001 00000 29.2 GiB
[  202.163517]  mmcblk0: p1
[  203.258077] SELinux: initialized (dev mmcblk0p1, type vfat), uses
genfs_contexts

[tmerley at localhost ~]$ mount
... ...
/dev/mmcblk0p1 on /run/media/tmerley/NO_NAME type vfat
(rw,nosuid,nodev,relatime,uid=1000,gid=1000,fmask=0022,dmask=0077,codepage=437,iocharset=ascii,shortname=mixed,showexec,utf8,flush,errors=remount-ro,uhelper=udisks2)


On Mon, Aug 25, 2014 at 7:58 PM, jd1008 <jd1008 at gmail.com> wrote:

>
> On 08/25/2014 08:40 PM, Ed Greshko wrote:
>
>> On 08/26/14 03:15, jd1008 wrote:
>>
>>> My flash card slot in the laptop is (per lspci):
>>> 03:01.2 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro
>>> Host Adapter (rev 21)
>>>
>>> I insert into it a SanDisk 16GB Extreme SD card. This card is not marked
>>> as a secure card.
>>> At least, it does not say so on the card.
>>>
>>> It gets automounted read only as:
>>>
>>> /dev/mmcblk0p1 on /run/media/jd/3D90-BEAB type fuseblk
>>> (ro,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other,blksize=4096)
>>>
>>> # umount -f /dev/mmcblk0p1
>>>
>>> # /sbin/mount.exfat -o rw /dev/mmcblk0p1 /mmcblk0p1
>>> FUSE exfat 1.0.1
>>> WARN: `/dev/mmcblk0p1' is write-protected, mounting read-only.
>>>
>>> So, what is causing it to be mountable read-only, and not get mounted
>>> read/write?
>>>
>> Did you format your card using the RPMfusion exfat-utils or did you do it
>> on Windows?  Whichever way you did it, you can try the other way.  If that
>> doesn't work, you may want to ask on the RPMFusion list and/or file a
>> bugzilla there.
>>
>>  If I recall correctly, I had indeed originally formatted it as exfat on
> windows.
> But after that I was found the rpmfusion exfat-utils and installed them on
> my fc20.
>
>
>
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