if you want diffrent username (default is linux)

login as linux (password "changeme"), open terminal and type

sudo passwd root

this will let you change root password

logout and login as root and run script

/scripts/rename-default-user.sh mypreferredusername

Note. if the user is used by some process just kill it (kill ) and run the command again which should throw a group error but don't worry about it :3

in order to change hostname you need to

1. put the new hostname in /etc/hostname

2. and update /etc/hosts

from

127.0.0.1 localhost 127.0.1.1 changeme ...

to

127.0.0.1 localhost 127.0.1.1 newhostname ...