Linux systemd单元启动配置及日志之local-fs.target

keyboard-setup.service

    Set the console keyboard layout
    ExecStart=/lib/console-setup/keyboard-setup.sh

    # journalctl -b -u keyboard-setup.service
    -- Logs begin at Mon 2019-06-03 16:58:43 CST, end at Wed 2021-09-29 13:17:01 CST. --
9月 26 09:17:12 eric-vm-dev systemd[1]: Started Set the console keyboard layout.

    
systemd-remount-fs.service 

    an early boot service that applies mount options listed in fstab(5) to the root file system, the /usr file system, and the kernel API file systems.
    ExecStart=/lib/systemd/systemd-remount-fs
    
    # journalctl -b -u systemd-remount-fs.service
    -- Logs begin at Mon 2019-06-03 16:58:43 CST, end at Wed 2021-09-29 09:04:45 CST. --
    9月 26 09:17:12 eric-vm-dev systemd[1]: Started Remount Root and Kernel File Systems.

    
systemd-tmpfiles-setup-dev.service

    systemd-tmpfiles creates, deletes, and cleans up volatile and temporary files and directories, based on the configuration file format and location specified in tmpfiles.d(5).
    ExecStart=/bin/systemd-tmpfiles --prefix=/dev --create --boot
    
    # journalctl -b -u systemd-tmpfiles-setup-dev.service
    -- Logs begin at Mon 2019-06-03 16:58:43 CST, end at Wed 2021-09-29 09:17:01 CST. --
    9月 26 09:17:11 eric-vm-dev systemd[1]: Started Create Static Device Nodes in /dev.

systemd-tmpfiles-setup.service

Create Volatile Files and Directories
    ExecStart=/bin/systemd-tmpfiles --create --remove --boot --exclude-prefix=/dev
    
    # journalctl -b -u systemd-tmpfiles-setup.service
    -- Logs begin at Mon 2019-06-03 16:58:43 CST, end at Wed 2021-09-29 09:16:21 CST. --
    9月 26 09:17:32 eric-vm-dev systemd[1]: Starting Create Volatile Files and Directories...
    9月 26 09:17:34 eric-vm-dev systemd[1]: Started Create Volatile Files and Directories.

    
systemd-fsck-root.service

systemd-fsck@.service and systemd-fsck-root.service are services responsible for file system checks.
    ExecStart=/lib/systemd/systemd-fsck
    KERNEL COMMAND LINE: fsck.mode=, fsck.repair=

  
systemd-ask-password-console.path
systemd-ask-password-console.service
systemd-ask-password-wall.path
systemd-ask-password-wall.service

systemd-ask-password-console.service is a system service that queries the user for system passwords (such as hard disk encryption keys and SSL certificate passphrases) on the console.