shell_build.log

% mix firmware  
Mix environment
  MIX_TARGET:   bbb
  MIX_ENV:      dev

Compiling 1 file (.ex)
|nerves_bootstrap| Building OTP Release...

==> Cleaning all releases..
==> Clean successful!
Updating base firmware image with Erlang release...
Parallel mksquashfs: Using 8 processors
Creating 4.0 filesystem on /Users/improper/Documents/badger/brainz/brainzfw/apps/brainz/_nerves-tmp/combined.squashfs, block size 131072.

Exportable Squashfs 4.0 filesystem, gzip compressed, data block size 131072
	compressed data, compressed metadata, compressed fragments, no xattrs
	duplicates are removed
Filesystem size 20049.47 Kbytes (19.58 Mbytes)
	55.17% of uncompressed filesystem size (36342.30 Kbytes)
Inode table size 15234 bytes (14.88 Kbytes)
	29.56% of uncompressed inode table size (51539 bytes)
Directory table size 17539 bytes (17.13 Kbytes)
	40.39% of uncompressed directory table size (43420 bytes)
Number of duplicate files found 17
Number of inodes 1565
Number of files 1256
Number of fragments 162
Number of symbolic links  132
Number of device nodes 1
Number of fifo nodes 0
Number of socket nodes 0
Number of directories 176
Number of ids (unique uids + gids) 4
Number of uids 3
	root (0)
	unknown (33)
	improper (501)
Number of gids 3
	wheel (0)
	_appstore (33)
	staff (20)
Building /Users/improper/Documents/badger/brainz/brainzfw/_build/bbb/dev/nerves/images/brainz.fw...
% mix firmware.burn
Mix environment
  MIX_TARGET:   bbb
  MIX_ENV:      dev

Use 1.84 GiB memory card found at /dev/rdisk2? [Yn] 
100%
Elapsed time: 5.319s