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→Introduction
Starting from [[Axel_Embedded_Linux_Kit_(XELK)#XELK_4.0.0|XELK 4.0.0]] the root file system generated by NXP Yocto recipes produces a root file system using [https://www.freedesktop.org/wiki/Software/systemd/ systemd].
Systemd is a ''System and Service Manager'' which has enough different settings and configuration from systemV SystemV(SysV) which was used on all XELK BSPs up to [[Axel_Embedded_Linux_Kit_(XELK)#XELK_3.0.0|XELK 3.0.0]].
This application note '''is not a complete systemd user's guide''' but collects some useful hints that can be used for getting familiar with Systemd. There is a plenty of documentation and User's Guide available for systemd, but some simple example - that can be found here below - may simplify the systemd approach for beginners.
