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著者: Arnt Karlsen
日付:  
To: dng
題目: Re: [DNG] Command to permanently prevent sysvinit from starting daemon
On Mon, 22 Oct 2018 12:40:20 +0200, KatolaZ wrote in message
<20181022104020.acw7kg5hbcnfdzps@???>:

> On Sun, Oct 21, 2018 at 11:18:39PM +0200, Arnt Karlsen wrote:
> > On Sun, 21 Oct 2018 19:07:36 +0200, Didier wrote in message
> > <826ba68a-6289-d047-7e74-d970996d28c4@???>:
> >
> > > Le 21/10/2018 à 19:01, Didier Kryn a écrit :
> > > >     I'm not an expert, but it seems to me the answer is in
> > > > inittab; the following line invokes the daemon which launches
> > > > all the scripts:
> > > >
> > > > si::sysinit:/etc/init.d/rcS     

> > >
> > >
> > >     Well, there is also the following lines:
> > >
> > > l0:0:wait:/etc/init.d/rc 0
> > > l1:1:wait:/etc/init.d/rc 1
> > > l2:2:wait:/etc/init.d/rc 2
> > > l3:3:wait:/etc/init.d/rc 3
> > > l4:4:wait:/etc/init.d/rc 4
> > > l5:5:wait:/etc/init.d/rc 5
> > > l6:6:wait:/etc/init.d/rc 6
> >
> > ..how many "runlevels" _can_ we add here? Can we name them freely?
> >
> > ..I'm not saying we should beat a stuffed "sysctl isolate $service"
> > systemd pig, just noting we have numbers and letters and lower and
> > upper cases etc and I've never seen anyone try "telinit 666" nor
> > 'init Tor' nor 'init FlightGear' etc to swap box configs to do
> > specific things like surf porn, investigate corruption or race quad
> > copters in FlightGear online, and to "kill off everything else"
> > using cpu, gpu or ram etc, automagically.
> >
>
> sysvinit currently supports runlevels 0-6, with 0 and 6 have special,
> fixed meaning. There is *currently* no way of naming a runlevel using
> more than one character, due to the way the "change runlevel"
> information is communicated to the init process.
>
> In Debian/Devuan, runlevel 1 has traditionally been assigned to
> single-user mode, and runlevel 2 to multi-user mode. But there is no
> written rule about that (meaning that a sysadmin can move and
> configure runlevels around as she wishes).


..I thank you both for your excellent heads-up on the *current*
status of sysvinit, a first step would be try utf-8 characters
like 'telinit å ' etc ... :o)
Aaand, I'm still not saying this is an awesomely good idea. ;o)

--
..med vennlig hilsen = with Kind Regards from Arnt Karlsen
...with a number of polar bear hunters in his ancestry...
Scenarios always come in sets of three:
best case, worst case, and just in case.