exfat on SD card getting mounted read-only

[jd1008]

On 08/25/2014 09:54 PM, Tod Merley wrote:
> 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 my machine,  journalctl -f  hangs after the last line:

$ journalctl -f
-- Logs begin at Sat 2014-06-07 19:14:31 MDT. --
Aug 26 11:44:20 localhost.localdomain dnf[2094]: Error: Failed to 
synchronize cache for repo 'updates' from 
'https://mirrors.fedoraproject.org/metalink?repo=updates-released-f20&arch=x86_64': 
Cannot download repomd.xml: Downloading successfull, but checksum 
doesn't match. Expected: 
f740c67dbd54f0d63eb4068cc0e83d473fbf1c41c535adba87c54a64ee7
Aug 26 11:44:20 localhost.localdomain systemd[1]: dnf-makecache.service: 
main process exited, code=exited, status=1/FAILURE
Aug 26 11:44:20 localhost.localdomain systemd[1]: Failed to start dnf 
makecache.
Aug 26 11:44:20 localhost.localdomain systemd[1]: Unit 
dnf-makecache.service entered failed state.
Aug 26 11:49:11 localhost.localdomain systemd[1]: Starting Cleanup of 
Temporary Directories...
Aug 26 11:49:13 localhost.localdomain systemd[1]: Started Cleanup of 
Temporary Directories.
Aug 26 11:50:01 localhost.localdomain systemd[1]: Starting Session 3 of 
user root.
Aug 26 11:50:01 localhost.localdomain systemd[1]: Started Session 3 of 
user root.
Aug 26 11:50:01 localhost.localdomain CROND[2126]: (root) CMD 
(/usr/lib64/sa/sa1 1 1)
Aug 26 11:51:57 localhost.localdomain kernel: [63B blob data]