On Sun, 2024-02-11 at 21:37 +0900, Byunghee HWANG (황병희) wrote: > Hellow Alexis, > > > What command did you type exactly? > > In normal cases, i do like this: > > <quote: debian way> > sudo su - > apt update > apt upgrade > </quote> > I logged on as root on tty1 /etc/init.d/lightdm stop apt update apt upgrade I always do minor and major version updates on a tty with no GUI running.