It is really important to do back up to your SD card because anymore addition or configuration will cause your previous configuration state to disappear and you have to redo everything!
I am in the state where I am partly successful with my experiment but unhappy about the framework used. So it’s time to do a back up and modify the files in the card for my new experiment.
I thought I have written a post regarding this but it seems like I have not. So, just for my future reference, here are the steps to do the back up. It’s pretty simple.
- If you are using Window, download Win32 Disc Imager (win32diskimager-v0.9-binary) here.
- Unzip the file and open the “Win32DiskImager” application.
- To write a back up file to your laptop/ PC, select the location where you want the backup file to be by clicking the “open file” icon. WARNING: it is going to be the size of your SD card, e.g 8Gb for my case.
- Type in a name for your backup file. Check that everything is correct.
- Click Read.
It takes a while to complete. Once it is done, it will prompt you and “Done” will be written at the bottom left.
To write a backup file to your SD card, do the same thing. Select the back up file and right device, click Write. This will overwrite the SD card with the backup image.