On Sat, Nov 30, 2024 at 08:33:34PM +0800, Bitfox wrote: > On 2024-11-30 20:31, poc...@homemail.com wrote: > > > > > > > > You did not comprehend what I posted. I am on the systemd mail list. > > They have dropped all sysV support. > > May I ask what's the main difference between systemd and sysv for init > system?
This would be a very long answer. I'd recommend you start reading the Wikipedia entry on "init system" [1] to get a rough idea. Init systems organize the start of a Unix/Linux-type system after the kernel has booted. Usually the kernel starts a first process (which typically gets the process ID (PID) 1, which starts everything else the system needs to get into a useful state. Very roughly speaking, SysV init consults a bunch of shell scripts which reside in /etc/init.d to know what is to be started in which order, whereas systemd has a bunch of files stating which services depend on which others and starts them whenever they are needed. Lots and lots of details (like socket activation with systemd) are missing in the rough description above, of course. Cheers [1] https://en.wikipedia.org/wiki/Init_system -- tomás
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