how to create a boot SD card with all what is on eMMC memory

Hi everybody

I use a BBB Wireless with a lot of developments to manage energy in my house.
I have seen the df -h give me only 300 MB resting on the main partition /dev/mmcblk1p1

Is it possible to create a SD card and boot with it directly with all the system working fine now ?

Here is the system actualy running

root@BBBW:~# uname -a
Linux BBBW 4.4.30-ti-r64 #1 SMP Fri Nov 4 21:23:33 UTC 2016 armv7l GNU/Linux

Thanks for help

On Fri, 24 Aug 2018 06:20:04 -0700 (PDT),
georges.guinchard@gmail.com declaimed the
following:

Is it possible to create a SD card and boot with it directly with all the
system working fine now ?

Here is the system actualy running
root@BBBW:~# uname -a
Linux BBBW 4.4.30-ti-r64 #1 SMP Fri Nov 4 21:23:33 UTC 2016 armv7l GNU/Linux

  Ouch -- 2016 is positively ancient in the BBB world.

  My suggestion would be to find the original image package used for that
version, write it to an SD card, /mount/ the SD card as a secondary "drive"
and use rsync to copy the eMMC contents to the SD card. Dismount SD card
and reboot -- which should now boot the SD card image, run the
"grow_partition" script to expand it into the full SD card.
.

Thanks a lot Denis, I’l try in the next time and give a feedback. Just I cannot do so just now, the system is on duty and I can’t stop it.

Regards, Georges