Re:Operating Systems Without Systemd
by mappu on Saturday May 02, 2020 @01:30AM
(#23049517)
Runlevels, for one.
[ Parent
| on HN ]
Oh. That's a linuxism. BSD has never had them, iirc. I don't think any of the other simpler init systems (eg, runit) did either.
No that’s a SysVism.
... that went away in parts of the System 5 world a year before Linux even existed.
* http://jdebp.uk./FGA/run-levels-are-history.html
getty was obsolete in the System 5 world two years earlier than that, in 1988.
* http://jdebp.uk./FGA/inittab-getty-is-history.html
Whilst not peculiar to Linux, it after all having been created for Minix, the van Smoorenburg init+rc system did resurrect some things that were already years gone in the System 5 world. Calling them "sysv" has always been somewhat of a misnomer. They are Linux/Minux clones of old System 5 mechanisms that were out of date at the time.