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Date:      Fri, 1 May 2020 11:12:04 -0600
From:      Gary Aitken <freebsd@dreamchaser.org>
To:        freebsd-questions@freebsd.org
Subject:   Re: Mounting SD-card in my camera
Message-ID:  <90587ad3-0da9-139d-2192-c2f85fd03453@dreamchaser.org>
In-Reply-To: <slrnranu5l.2rp.listmail@asmtp.unoeuro.com>
References:  <slrnranrhp.1aa.listmail@asmtp.unoeuro.com> <DB8PR06MB644286783262BFE3D46EFF17F6AB0@DB8PR06MB6442.eurprd06.prod.outlook.com> <slrnranu5l.2rp.listmail@asmtp.unoeuro.com>

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On 5/1/20 4:23 AM, Morten Bo Johansen via freebsd-questions wrote:
> On 2020-05-01 Manish Jain wrote:
> 
>> Hi Morten,
>>
>> 1) It would be useful if you could provide the output of :
>> `gpart show da0`
> 
> It says:
> 
>    gpart: No such geom: da0
> 
>> 2) Is it possible for you to take the SD card out of the camera, insert
>> it into a USB SD card reader, and attach the card reader to the system ?
> 
> Great idea, why didn't I think about that ...;) Yes I can plug
> the card into a USB card reader and it is automounted with no
> problem. The device subnode /dev/da0s1 is also created on this
> occasion.
> 
> With the card reader the output from gpart is
> 
>     $ gpart show da0
>     =>       63  124735425  da0  MBR  (59G)
>              63      32705       - free -  (16M)
>           32768  124702720    1  ntfs  (59G)
> 
> I just wonder why it does not work with my camera. It works
> with no problem in Linux.

Cards <= 32 are formatted with FAT, those greater get ExFAT and
must be mounted using fuse.

Camera SD cards normally use msdosfs:
     mount -t msdosfs /dev/da0s1 /mnt
However...
   SD cards >32GB are formatted exFAT
     Need to use fuse to mount:
       /boot/loader.conf or /boot/loader.conf.local:
         fuse_load="YES"
       /etc/rc.conf:
         fusefs_enable="YES"
       kldstat should show fuse.ko loaded
       man mount.exfat-fuse
       mount.exfat -o ro /dev/da0s1 /mnt
       unmount normally using umount

Gary



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