spousteni programu

[Petr Novotny]

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On 1 Dec 99, at 15:48, Novotny Petr wrote:

> muze mi nekdo dat to spravne know-how jak funguje spousteni programu
> pomoci /etc/rc.d , nainstaloval jsem squida , a rucne ho nahodim pomoci
> /etc/rc.d/init.d/squid start . myslel jsem ze pokud dany sw ma spousteci
> prog v danem adresari /etc/rc.d/init.d tak nabehne automaticky a ono ne . 

Viz /etc/rc.d/rc: (citat)
# Is there an rc directory for this new runlevel?
if [ -d /etc/rc.d/rc$runlevel.d ]; then
        # First, run the KILL scripts.
        for i in /etc/rc.d/rc$runlevel.d/K*; do
                # Check if the script is there.
                [ ! -f $i ] && continue

                # Check if the subsystem is already up.
                subsys=${i#/etc/rc.d/rc$runlevel.d/K??}
                [ ! -f /var/lock/subsys/$subsys ] && \
                    [ ! -f /var/lock/subsys/${subsys}.init ] && continue

                # Bring the subsystem down.
                $i stop
        done

        # Now run the START scripts.
        for i in /etc/rc.d/rc$runlevel.d/S*; do
                # Check if the script is there.
                [ ! -f $i ] && continue

                # Check if the subsystem is already up.
                subsys=${i#/etc/rc.d/rc$runlevel.d/S??}
                [ -f /var/lock/subsys/$subsys ] || \
                    [ -f /var/lock/subsys/${subsys}.init ] && continue

                # Bring the subsystem up.
                $i start
        done
fi

Jinymi slovy: Pri prechodu na runlevel X to v adresari /etc/rc.d/rcX.d 
spusti vsechny soubory K* s parametrem "stop" (typicky linky do 
/etc/rc.d/init.d) a pak vsechny soubory S* s parametrem "start".

(Cisla runlevels:
0 - halt
1 - single
2 - nepouzivan; mel by byt plny bez NFS
3 - bezny provoz
4 - nepouzivan
5 - bezny s xdm ("boot do X")
6 - reboot)

squid vam tedy nevytvoril linky v /etc/rc.d/rc?.d

Vytvorit je lze 
a. manualne
b. programem chkconfig (console-based)
c. programem tusim tksysv (X-based)

b a c vyzaduje specialni format hlavicky souboru v /etc/rc.d/init.d - 
kdyztak nacerpejte inspiraci v nejakem funckcnim.

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--
Petr Novotny, ANTEK CS
Petr.Novotny na antek.cz
http://www.antek.cz
PGP key ID: 0x3BA9BC3F
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