I have just unboxed my all-new BQ Aquaris M10 Ubuntu Edition and started it for the first time. The device comes with Ubuntu 15.04 pre-installed. While playing around, I was unable to find any setting menu to add new users to the device. One of the main reasons for my decision to wait four years for an Ubuntu powered tablet was to have all users use their own system account.
Update: I have added a Terminal app from the Ubuntu store. I opened a root console and tried
# adduser USERNAME --ingroup phablet
This is what happens:
Adding user `USERNAME' ... Adding new user `USERNAME' (1002) with group `phablet' ... useradd: cannot lock /etc/passwd; try again later. adduser: `/usr/sbin/useradd -d /home/USERNAME -g phablet -s /bin/bash -u 1002 USERNAME' returned error code 1. Exiting.
Error code 1 for useradd command says
Can't update password file according to http://linux.die.net/man/8/useradd
So, how to add and edit user profiles on the tablet?