You can extract the tarball to a directory, then run mkfs.ext4 -d DIRECTORY FILENAME BLOCKS to create a filesystem[0]. You'll need to know how many blocks your

You can extract the tarball to a directory, then run mkfs.ext4 -d DIRECTORY FILENAME BLOCKS to create a filesystem[0]. You'll need to know how many blocks your filesystem needs to be in advance. Unfortunately, mkfs.ext4 only works on Linux. There is no port for other operating systems. [0] https://github.com/cedws/concrete-ubuntu/blob/0ae3f076c5a20d36c687afbad9ead60055bed10a/Dockerfile#L85-L89 https://github.com/cedws/concrete-ubuntu/blob/0ae3f076c5a20d...