create a new root user
mkdir -p /home/ycycxz
useradd -m ycycxz --home-dir /home/ycycxz
passwd
openssl rand -base64 18
t7YbDKffv2KEyJ1zEtmV15ow
usermod -aG sudo ycycxz
su ycycxz
mkdir -p /home/ycycxz
useradd -m ycycxz --home-dir /home/ycycxz
passwd
openssl rand -base64 18
t7YbDKffv2KEyJ1zEtmV15ow
usermod -aG sudo ycycxz
su ycycxz