[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index]

Re: NMU'ing for wishlist bugs? (aka: intent to NMU bind9)

Postinst will not fail; the && keeps it from doing so.  If the
`&& echo "Group 'bind' added to system"' is removed, postinst fails and
stops processing; however, w/ that there, failure to add the group is
ignored.  Processing of postinst continues.

The md5sum stuff is unfortunate; it is there to provide a clean upgrade.
The logic goes something like this:

if the user has not edited named.conf
	create /var/run/bind
	if the user has not edited the init script
		change permissions on all writable files/directories to
		be owned by user/group bind

The checks are necessary due to the following cases:

A user has changed the init script; for example, to run bind as user
'nobody'.  If this is the case (and they don't want the init script
replaced during upgrade), then we must not change any permissions on any
of the bind directory/files, as the user might've made them owned by
user nobody.  Changing perms would break their setup.

A user has changed named.conf; this means we cannot assume that the
pidfile directory will be correct in named.conf, so there's no point
even bothering changing permissions; no pidfile directory means bind9
will fail to run correctly as non-root.

On Thu, Sep 12, 2002 at 11:22:29AM -0600, LaMont Jones wrote:
> On Thu, Sep 12, 2002 at 01:07:29PM -0400, Andres Salomon wrote:
> > Eh?  Check postinst.in.  It does the user addition, checks to see
> > whether it should change permissions, etc.  postinst is created at 
> > build time.
> On the second time that postinst runs, it will exit with an error (group
> exists.)
> WTH is the md5sum stuff for?  It strikes me as a significant addition of
> complexity, without really buying me anything.
> lamont

Buying a Unix machine guarantees you a descent into Hell. It starts when
you plug the computer in and it won't boot. Yes, they really did sell you
a $10,000 computer with an unformatted disk drive.
	-- Philip Greenspun

Reply to: