If I run:
sudo dd if=/dev/sda1 of=~/image.img bs=1M
image.img (which is located on
/dev/sda1) be continuously copied onto itself? As it gets bigger from data, will that additional data be written in the image and continue forever?
No, you will run out of disk space before the operation completes. The disk image
Imagine an object trying to eat itself. To contain itself in addition to itself it must be at least twice as big.