Created attachment 682112 [details]
Installation log: look for 2016-06-25 17:07:09

During Net install of Leap 42.2 Alpha2 installer fails to set up a first user
account.
Yast asked for user details, then signaled "Internal error, please file
bugreport", see attached log near

2016-06-25 17:07:09 <3> LT_B(4049) [Ruby] yast/wfm.rb:202 Client call failed
with 'undefined method `mktmpdir'

As a result Yast asks only for a root's password. Install completed with no
other problem.
First user account then setup manually on first boot, everything normal after
another reboot.