>%useradd
>useradd: Команда не найдена.
>%adduser
>Username: test123
>Full name:
>Uid (Leave empty for default):
>Login group [test123]:
>Login group is test123. Invite test123 into other groups? []:
>Login class [default]:
>Shell (sh csh tcsh nologin) [sh]:
>Home directory [/home/test123]:
>Use password-based authentication? [yes]:
>Use an empty password? (yes/no) [no]:
>Use a random password? (yes/no) [no]: yes
>Lock out the account after creation? [no]:
>Username : test123
>Password : <random>
>Full Name :
>Uid : 1025
>Class :
>Groups : test123
>Home : /home/test123
>Shell : /bin/sh
>Locked : no
>OK? (yes/no): yes
>pwd_mkdb: 1025 > max uid value (4294967295)
>pwd_mkdb: at line #46
>pwd_mkdb: /etc/master.passwd: Inappropriate file type or format
>pw: user 'test123' disappeared during update
>adduser: ERROR: There was an error adding user (test123).
>Add another user? (yes/no): no
>Goodbye!
>%
# uname -a
либо кто-то что-то наваял с adduser, либо с форматом master.passwd,
либо с default значениями uid/gid и последними заведенными пользователями
# vipw - добавь нужного пользователя руками и все увидишь, в смысле
ошибки высечешь