Well, @doniks, I have tried creating files of various sizes with dd and doing an adb push with them, and there are some results: -Images of 1 GB or 1,5 GB are not created by an error of insufficient space in halium-install -Images of 2 GB or more are created but when I try to push it to the phone vía adb push (filename) /data it gives me an error of not enough partition size. I have tried it not only with Ubuntu Touch images, also with Plasma Mobile rootfs and Halium reference rootfs.

@synnyg_r If you flashed via script halium-install-standalone.sh dont forget to add argument with -p ut halium-install-standalone.sh -p ut path/to/rootfs.tar.gz path/to/system.img