HelenOS release 0.8.0 (Speranza), revision 391996b40
Built on 2019-02-11 01:26:30
Running on arm32 (vterm/25)
Copyright (c) 2001-2018 HelenOS project

Welcome to HelenOS!
http://www.helenos.org/

Type 'help' [Enter] to see a few survival tips.

/ # mkfile --size 2m /tmp/img
mkfile: Error writing file ([EIO]Input/output error).
/ # ls /tmp
img                                             778240
/ # _