On Tuesday 16 September 2008 04:30, Steven Woody wrote:
> Hi,
>
> 1. Can I get something like bootwait in inittab? I found 'sysinit'
> is not waiting for invoked script to complete before go to a `respawn'
> entry.
"sysinit" has to wait accourding to this code:
static void run_actions(int action_type)
{
struct init_action *a, *tmp;
for (a = init_action_list; a; a = tmp) {
tmp = a->next;
if (a->action_type & action_type) {
if (a->action_type & (SYSINIT | WAIT | CTRLALTDEL |
SHUTDOWN | RESTART)) {
HERE => waitfor(run(a));
delete_init_action(a);
} else if (a->action_type & ONCE) {
run(a);
delete_init_action(a);
} else if (a->action_type & (RESPAWN | ASKFIRST)) {
/* Only run stuff with pid==0. If they have
* a pid, that means it is still running */
if (a->pid == 0) {
a->pid = run(a);
}
}
}
}
}
You can instrument waitfor(), making it print PID it waits for,
other pids it sees exiting while it waits for it, etc.
But I suspect you see sysinit "not being waited for" just because
it creates a child, and the parent dies. init thinks that sysinit
completes because it detects parent's exit.
> 2. Can I automatically get two scripts run before the box shutdown
> and reboot respectively?
Yes, trivially:
# pre_reboot_script.sh
# reboot
--
vda
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