On So, 06.05.18 14:44, www (ouyangxuan10 at 163.com) wrote: > Dear, > > I want to study the system, but I donâ??t know how to begin it. Who can give me some advices to study sytemd? > > I searched the info on the Internet and found that there was very > little information about sytemd. I didn't know how to start learning > systemd. Even in the github of systemd, can not get more info. On UNIX, a good place to start is generally the man pages, even though they are primarily a reference, not so much an introduction: https://www.freedesktop.org/software/systemd/man/systemd.html# > How can I porting the systemd to the embedded linux? Many embedded Linux distros already contain support for systemd, it's probably best to ask those distros for details. Lennart -- Lennart Poettering, Red Hat