Es gibt einen interessanten Thread auf raspberry.org/forums wo u.A. folgende Tools angeboten werden: image-backup und image-shrink klingen besonders fuer Windows Nutzer sehr interessant ...
image-backup: image-backup creates a backup of a running Raspbian system to a standard 'raw' image file that can be written to an SD card or a USB device with Etcher, imageUSB, etc. It will also perform incremental updates to an existing backup image file. Image-check: image-check will check the integrity of a standard 'raw' image file. Usage is: image-chroot: image-chroot performs a linux 'chroot' to an image file. The current user will be 'root' and the current directory will be '/' in the image file. The host's root filesystem will be available at /host-root-fs. Use exit or ^D to terminate chroot. Usage is: image-compare: image-compare compares a running Raspbian system to an existing standard 'raw' image file and displays the incremental changes that image-backup would perform if run. Usage is: image-info: image-info displays information about a standard 'raw' image file. Usage is: image-mount: image-mount mounts a standard 'raw' image file to allow it to be read or written as if it were a device. Usage is: image-set-partuuid: image-set-partuuid sets the ROOT partition PARTUUID value of a standard 'raw' image file. Usage is: image-shrink: image-shrink shrinks a standard 'raw' image file to its smallest possible size (plus an optional additional amount of free space).