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How to make a backup of SD card? - Printable Version

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How to make a backup of SD card? - Onionhead - 05-07-2019

I would like to make a backup copy of  moOde 5.0 using MAC OS. I have expanded the partition via moOde UI.  Assume  sd card is disk3

In the past  was able to do so using this command : sudo dd if=/dev/disk3 of=/Users/Lt1user/Documents/moode.img count=6242304 bs=512

Can this command be used for 5.0?  Thanks


RE: How to make a backup of SD card - Tim Curtis - 05-08-2019

Yes, thats the correct command. If you have expanded the file system to the max size of the SDCard the backup can take a very long time depending on the size of the card.

Below is what I use. I always do "diskutil list" just to confirm the SDCard gets mounted to /dev/disk3

Code:
diskutil list
diskutil unmountDisk /dev/disk3
sudo dd if=/dev/disk3 of=/Users/Lt1user/Documents/moode.img count=6242304 bs=512
diskutil eject /dev/disk3



RE: How to make a backup of SD card - Onionhead - 05-08-2019

(05-08-2019, 01:02 AM)Tim Curtis Wrote: Yes, thats the correct command. If you have expanded the file system to the max size of the SDCard the backup can take a very long time depending on the size of the card.

Below is what I use. I always do "diskutil list" just to confirm the SDCard gets mounted to /dev/disk3

Code:
diskutil list
diskutil unmountDisk /dev/disk3
sudo dd if=/dev/disk3 of=/Users/Lt1user/Documents/moode.img count=6242304 bs=512
diskutil eject /dev/disk3
 Perfect will give that a try later on. Not sure you have seen my recent posts but 5.0 and my NAS don't get on. Don't know how it happened but think I finally have all music files on NAS synched. Imperative that I get a backup before my luck runs out. Good day.