I try to install Ubuntu Desktop 24.04.2. But when I create an user in installation guidance, the user's password is seemingly required to be stronger than 4 digits.
But I want to use 4 digits password.
How I can remove this regulation in the installation step?
(I really don't need the kind of "You should use stronger password" advice.)
A normal user can't set weak password using passwd, but root can. Therefore, to set a weak password for jdoe user, you could run:
If identified as root (e.g., through sudo -s):
passwd jdoe
If idenfied as a user belonging to the sudo group (see the result of the groups command):
sudo passwd jdoe
Remark: Setting a weak password is probably not the best approach in your case. Indeed, desktop managers (e.g., lightdm, sddm, gdm3) can enable auto-login. Thus, if you are the only person that physically uses your computer, you could keep a strong password without having to enter your password when you start Ubuntu.
If you install, using a password, once you are in to the system start a shell and then change the password with passwdand change as required.
To remove password complexity requirements when installing Ubuntu 24.04.2, you can modify the configuration used by libpam-pwquality.
When you install the package libpam-pwquality (using sudo apt install libpam-pwquality), it generates a /etc/security/pwquality.conf configuration file.
You can customize or disable password complexity by editing this file.
