kakofonix@kakofonix:~/nexo360_base_image_v4$ xz -l bootfs.tar.xz
Strms  Blocks   Compressed Uncompressed  Ratio  Check   Filename
    1       1   4364,7 KiB   5000,0 KiB  0,873  CRC64   bootfs.tar.xz
kakofonix@kakofonix:~/nexo360_base_image_v4$ xz -l rootfs.tar.xz
Strms  Blocks   Compressed Uncompressed  Ratio  Check   Filename
    1       1    225,4 MiB   1124,4 MiB  0,200  CRC64   rootfs.tar.xz