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2019年12月5日 7:00:24

Howto: Backing up your DJI Crystal Sky System Image

7 months ago
#851 引用
This thread is for making a  system image file of your CS before installing a bunch of stuff or soft brick the booting.

Before you do anything else with your Crystal Sky make a back up of you system image file. If for some reason you should end up bricking it this will be the only way to recover it without sending it back to DJI!!!

Credits - https://dji-rev.slack.com of course
@nocommie - lot's of patients there brother!!


First you need to root your Crystal Sky. If you don't know how to do that then check out this guide.

https://nolimitdronez.com/boards/topic/39/howto-rooting-dji-crystal-sky

Second - you need to make the system.img file. You do this in an adb shell. If you don't know what that is go back to the guide.

Likewise, you need root access(in the guide too!). Oh, put an sdcard in slot 1 on your CS.

adb shell


Now get root going.

su


I like to do these commands at the root so do this command.

cd /


The command to get all of the system files into a system.img file is this.

dd if=/dev/block/mmcblk0p10 of=/mnt/internal_sd/Download/system.img


You should see something like:

******************
root@zs600b:/ # dd if=/dev/block/mmcblk0p10 of=/mnt/internal_sd/Download/system.img
6291456+0 records in
6291456+0 records out
3221225472 bytes transferred in 68.097 secs (47303485 bytes/sec)
root@zs600b:/ #
*****************

The next thing you want to do is transfer the system.img to some place safe. Let's move it to that sd card so you can store it on your PC or NAS box.

While still in the root do this

cp /mnt/internal_sd/Download/system.img /mnt/external_sd1/system.img


Now you can take that system.img file and save it to your safe place.

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7 months ago
#852 引用
I'll use this post to outline putting the system.img back onto your CS should you end up screwing it up so bad it wont boot the the DJI update screen.
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7 months ago
#853 引用
saved
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7 months ago
#854 引用
saved
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7 months ago
#863 引用
Stickied, thanks as always :)
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7 months ago
#1095 引用
I tried to back up my crystal sky but it just returns No such file or directory
any ideas?
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3 months ago
#3889 引用
Hello , how are we supposed to  restore the system.img back onto your CS ?
thanks

Nicolas
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one month ago
#4220 引用
Also from me an big thanks for the Guide.

And also from me the question about how to restore the system.img in case of problems with my CS?

Please can you provide us an restore guide?
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26 days ago
#4294 引用
CantRepeat wrote:
I'll use this post to outline putting the system.img back onto your CS should you end up screwing it up so bad it wont boot the the DJI update screen.


Hi there,
Please inform us how to restore backup. Otherwise making it is kind of useless in the first place.
Regards,
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