Andrew McGlashan writes:
> At 2:45 he says that you tell systemd what the dependencies of things
> are, and systemd figures out at boot time what to do. Hey, couldn't
> that be done with a make file, with a whole less code and fanfare? LOL,
> make boot.
This is called startpar, and SuSE already wrote it, in 2003.
Debian 7 uses it by default. Here's my halt dependency DAG:
# cat /etc/init.d/.depend.stop
TARGETS = quotarpc mdadm busybox-syslogd smartmontools busybox-klogd
urandom hwclock.sh quota sendsigs umountnfs.sh networking umountfs umountroot
mdadm-raid mdadm-waitidle live halt reboot
quota: quotarpc
sendsigs: quotarpc quota mdadm busybox-klogd busybox-syslogd
umountnfs.sh: quotarpc quota sendsigs busybox-klogd busybox-syslogd
networking: umountnfs.sh
umountfs: quotarpc quota networking umountnfs.sh mdadm busybox-klogd
busybox-syslogd hwclock.sh urandom
umountroot: umountfs
mdadm-raid: umountfs mdadm
mdadm-waitidle: umountroot
live: umountroot
halt: live umountroot mdadm-waitidle
reboot: live umountroot mdadm-waitidle
It's invoked with these args by default:
/etc/init.d/rc:95: eval "$(startpar -p 4 -t 20 -T 3 -M $1 -P $previous -R
$runlevel)"
That is, it runs up to four jobs per CPU in parallel.
"The -M option switches startpar into a make(1) like behaviour."
You may also want to look at minit / cinit.
_______________________________________________
luv-main mailing list
[email protected]
http://lists.luv.asn.au/listinfo/luv-main
