I got error when I am trying to start light dm
I searched for all instructions and required lib and i couldn't find plymouth
I got this errr
[+0.02s] DEBUG: Could not run plymouth --ping: Failed to execute child process ?plymouth? (No such file or directory)
[+0.02s] DEBUG: Using VT 7
[+0.02s] DEBUG: Seat seat0: Starting local X display on VT 7
[+0.03s] DEBUG: XServer 0: Logging to /var/log/lightdm/x-0.log
[+0.03s] DEBUG: XServer 0: Writing X server authority to /var/run/lightdm/root/:0
[+0.03s] DEBUG: XServer 0: Launching X Server
[+0.03s] DEBUG: Launching process 436: /usr/bin/X :0 -seat seat0 -auth /var/run/lightdm/root/:0 -nolisten tcp vt7 -novtswitch
[+0.03s] DEBUG: XServer 0: Waiting for ready signal from X server :0
[+0.03s] DEBUG: Acquired bus name org.freedesktop.DisplayManager
[+0.03s] DEBUG: Registering seat with bus path /org/freedesktop/DisplayManager/Seat0
[+0.04s] DEBUG: Loading users from org.freedesktop.Accounts
[+0.04s] DEBUG: User /org/freedesktop/Accounts/User1000 added
[+0.08s] DEBUG: Process 436 exited with return value 1
[+0.08s] DEBUG: XServer 0: X server stopped
[+0.08s] DEBUG: Releasing VT 7
[+0.08s] DEBUG: XServer 0: Removing X server authority /var/run/lightdm/root/:0
[+0.08s] DEBUG: Seat seat0: Display server stopped
[+0.08s] DEBUG: Seat seat0: Stopping session
[+0.08s] DEBUG: Seat seat0: Session stopped
[+0.08s] DEBUG: Seat seat0: Stopping display server, no sessions require it
[+0.08s] DEBUG: Seat seat0: Stopping; greeter display server failed to start
[+0.08s] DEBUG: Seat seat0: Stopping
[+0.08s] DEBUG: Seat seat0: Stopped
[+0.08s] DEBUG: Required seat has stopped
[+0.08s] DEBUG: Stopping display manager
[+0.08s] DEBUG: Display manager stopped
[+0.08s] DEBUG: Stopping daemon
[+0.09s] DEBUG: Exiting with return value 1

Thanks a lot

You won't have plymouth in LFS unless you built and installed it. My guess is you didn't, because it isn't in BLFS, not even in the systemd version. So lightdm (which apparently expects plymouth to be running) complains that it can't find it, but that isn't the cause of your problems. It's a red herring.

As you can see, lightdm starts up the X server normally after kvetching about plymouth. Then something goes wrong. The server stops with an error. To discover what that error was, you need to look at /var/log/Xorg.log.0.

Thanks millions of times