Create a backup image of external SSD drive (Ext4)?

General Discussion
1

Got a project called TeslaUSB setup on my Rock 4C+. Dietpi is installed on the MicroSD-card, and I have an external SSD connected to the USB3-port. I have created a full image of the MicroSD card on Windows using AOMEI Backupper.

This way I can restore if something breaks, but I want to create a backup image of the external SSD too. However this disk is 1TB, and creating an image would take up a lot of space, as most of the disk is empty at the moment.

Is it possible to create an image of this disk, without saving the free space in the image? That way I am not keeping a 1TB image.

2

you could try dietpi-imager

bash -c "$(curl -sSfL 'https://raw.githubusercontent.com/MichaIng/DietPi/master/.build/images/dietpi-imager')"
3

For anyone having the same issue in the future, using HDDRawCopy1.20 solved this. dd probably would have worked too.

4

Did the image come out larger with HDDRawCopy than you wanted by copying empty space along with data? Thanks.

5

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