I'm new to this site, got interested in modifying my MyBook purely because it wouldn't let me use my preferred username as it was too short. This is what I did:
change line 267 from "my $minlen = 5;" to 3 (though I imagine any length would be fine)
change line 107 from "e04005 => 'Username must be between 5 and 20 characters'," to 3 as well (purely for neatness' sake)
create the user using the standard interface.
Can anyone see any problems that could be caused by doing this? I can't see why given I use the same username for samba on all my other linux boxes