I will just explain how my laptop startup look like. One boot process from grub to login. I use Laptop only for me so I don’t have to take care for multiuser.
I try no make the boot process as minimal as possible. And require as well user interaction as possible.
First of all I will use grub as my bootloader to load Linux itself.
I setup the grub timeout to 0 get get a faster boot time.
To apply the settings I have to rebuild the grub configuration with:
After Linux has started it will immediately decrypt my harddrive. For that I need to insert my Key.
Linux will start systemd will take care of starting all oder needed processes. When the system is ready systemd will mange the autologin. I don’t use a dispaly manager I just login right in to the shell.
I setup the autologin on the following way:
With the command following command I will create the configuration file for the login. (/etc/systemd/system/[email protected]/override.conf)
systemctl edit [email protected]
Add the lines to the configuration file:
[Service] ExecStart= ExecStart=-/sbin/agetty --autologin USERNAME --noclear %I 38400 $TERM
Enable the new service in systemd
systemctl enable [email protected]
At the next boot you will be log in automatically.
I use ZSH as my login shell. It will first check if an xserver is running and we are on tty1. I do this by adding the following snippet to my .zprofile.
if [[ ! $DISPLAY && $XDG_VTNR -eq 1 ]]; then exec startx fi
The startx command load the .xinitrc file in my home directory. I only will explain here the importend parts of my .xinitrc file. The full file can be found in my dotfiles.
I start my user services with systemd. Some of the application need to have information the running xserver. For application of this kind I first load the X variables in to systemd and DBUS.
systemctl --user import-environment DISPLAY XAUTHORITY & if command -v dbus-update-activation-environment >/dev/null 2>&1; then dbus-update-activation-environment DISPLAY XAUTHORITY & fi
To start the application with systemd I start my x target. this systemd target I includes all the service I want to start in my user session and depends on X.
systemctl --user start x.target &
Don’t enable the target if you do this it will start before you have the variables you need
At the end I start i3 as my display manager with: