Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!uwm.edu!linac!att!pacbell.com!pacbell!ptsfa!dmturne
From: dmturne@PacBell.COM (Dave Turner)
Newsgroups: comp.unix.wizards
Subject: Re: system V init levels
Keywords: sysV init levels
Message-ID: <6088@ptsfa.PacBell.COM>
Date: 29 Mar 91 00:17:01 GMT
References: <3301@hsi86.hsi.com>
Reply-To: dmturne@PacBell.COM (Dave Turner)
Distribution: usa
Organization: Pacific * Bell, San Ramon, CA
Lines: 32

In article <3301@hsi86.hsi.com> lucchina@hsi86.hsi.com (Paul Lucchina) writes:
>How does one traverse init levels in an unattended mode?  The OS is DG/UX 4.31
>and the scripts I am trying to run do the following:
>	1 - bring the system down to init level 1 (run by cron)
>	2 - do level 0 dumps (a shell script located in /etc/rc1.d)
>	3 - bring the system up to init level 3 (another script in /etc/rc1.d)
>Steps 1 and 2 work,  step 3 never happens the system remains at init
>level 1.
>Since step 3 is located in /etc/rc1.d the init level 1 scripts are not
>completed before an "/etc/telinit 3" is executed.
>
>How do I get to init level 3?

We use level 4 for this.

In root's crontab:

30 1 * * 1 /etc/init 4

In /etc/inittab:

i4a:4:wait:/etc/rc4 1> /dev/systty 2>&1			# kill off all processes
i4b:4:wait:/letc/init4.fsck.dbu auto 1>/dev/systty 2>&1	# do fsck and dbu
i4c:4:wait:/etc/init 3					# go back to multi-user


The details in /letc/init4.fsck.dbu (disk back up) are left as an exercise for
the reader. :-)


-- 
Dave Turner	415/823-2001	{att,bellcore,sun,ames,decwrl}!pacbell!dmturne