Re: [vserver] gentoo and baselayout 2

On Saturday 01 September 2007, Gregory M. Turner wrote:
> On Thursday 30 August 2007, Ed W wrote:
[snip]
> > I thought this was something I created off my own back to work around
> > these issues, but then you pasted in exactly the same file and now I
> > doubt myself... Seems coincidental we both came up with the same hack?
>
> Sorry, I was being either cryptic or stupid above. That was just a
> diffdump of what was in my tree versus vanilla, including, I see, mostly
> bugs. But, somewhere in that mess, there might be something that makes a
> difference, i.e.:
>
> diff -ur ./etc/conf.d/rc /etc/conf.d/rc
> --- ./etc/conf.d/rc 2007-08-27 20:46:32.000000000 +0000
> +++ /etc/conf.d/rc 2007-08-24 16:38:30.000000000 +0000
> @@ -26,7 +26,7 @@
> # both will be started, but services that depend on 'net' will work if
> either # one comes up. With RC_DEPEND_STRICT="yes" we would require them
> both to # come up.
> -RC_DEPEND_STRICT="yes"
> +RC_STRICT_DEPEND="no"
>
> # Do we allow services to be hotplugged? If not, set to RC_HOTPLUG="no"
> # NOTE: This does not affect anything hotplug/udev/devd related, just the
> --
>
> Which might have enabled my vserver to boot by relaxing some dependency
> checking in the init system (as you can see, this patch apparently also
> introduces a bug by renaming RC_DEPEND_STRICT).
>
> If you are referring generally to links between net.lo and net.XXX in
> the /etc/init.d directory, AFAIK that is the Official Gentoo Way (tm) to
> wedge network interfaces into the init system... so maybe as you originally
> guessed, you created it manually (while following a guide).

I still don't think the above is clear. ignore that for now. Here's what I'm
getting at:

As far as I know, Gentoo net* init scripts work something like:

exogenous) Gentoo init system runs
0. Gentoo decides that /etc/init.d/net.X should run.
1. net.X happens to be a symlink to /lib/rcscripts/sh/net.sh
2. /lib/rcscripts/sh/net.sh reads network settings from
   /etc/conf.d/net.X or /etc/conf.d/net
3. ?
4. something networky happens (i.e., "ifconfig $(a-bunch-of-args)")

The fundamental problem if I understand, is that #4 shouldn't occur because
(a) vserver-utils put up the interface before gentoo init runs and (b)
something bad will happen if the vserver "guest" tries to touch network
hardware. It seems to me that deviating during step #3 is the best solution
but as you can see above I haven't looked into it carefully :)

I found it interesting, however, that my setup (since killed) was working,
somehow, without changing the vanilla versions of the init.d script (which is
why I documented it). There is certainly nothing wrong with fixing it at
step #1 as you have; in fact this is probably the best solution for the case
where all networking is set up by the vserver-utils.

-- 
gmt