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Re: Bug#225465: debian-policy: packages must give choice to notstart at boot, via debconf

On Jan 7, 2004, at 14:55, Stephen Gran wrote:

This one time, at band camp, Anthony DeRobertis said:

/etc/init.d/rc and /etc/init.d/rcS. Look in the /etc/inittab file.

I'm pretty sure this means PPID != 1.

Yes, I was working with two variants:
[ -n "$RUN_package_AT_BOOT" -a "$PPID" = "1" ] || exit 0
if [ -z "$RUN_package_AT_BOOT" -o "$PPID" != "1" ] ; then exit 0 ; fi

I should of been clearer: I don't think scripts run at boot are guaranteed that PPID = 1. That is because init (pid = 1) invokes /etc/init.d/rc (pid = ?) which then invokes /etc/rcX.d/YYYYY (pid = ?).

Although I haven't rebooted a machine to test, I bet:

	echo "PPID = $PPID"

as /etc/init.d/test-ppid and installed with update-rc.d would NOT echo
	PPID = 1
but rather some number that would be repeatable (unless you have random PIDs), but very machine dependent.

And even if $PPID is 1, that's quite fragile.

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