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Date: Mon, 24 Dec 2012 08:55:28 +0200
From: Alan McKinnon <alan.mckinnon@gmail.com>
To: gentoo-user@lists.gentoo.org
Subject: Re: [gentoo-user] Re: Anyone switched to eudev yet?
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On Sun, 23 Dec 2012 19:03:25 +0200
nunojsilva@ist.utl.pt (Nuno J. Silva) wrote:
> On 2012-12-23, Alan McKinnon wrote:
>
> > On Sun, 23 Dec 2012 12:22:24 +0200
> > nunojsilva@ist.utl.pt (Nuno J. Silva) wrote:
> >
> >> On 2012-12-18, Alan McKinnon wrote:
> >>
> >> > On Tue, 18 Dec 2012 09:08:53 -0500
> >> > Michael Mol <mikemol@gmail.com> wrote:
> >> >
> >> >
> >> > This sentence summarizes my understanding of your post nicely:
> >> >
> >> >> Now, why is /usr special? It's because it contains executable
> >> >> code the system might require while launching.
> >> >
> >> > Now there are only two approaches that could solve that problem:
> >> >
> >> > 1. Avoid it entirely
> >> > 2. Deal with it using any of a variety of bootstrap techniques
> >> >
> >> > #1 is handled by policy, whereby any code the system might
> >> > require while launching is not in /usr.
> >> >
> >> > #2 already has a solution, it's called an init*. Other solutions
> >> > exist but none are as elegant as a throwaway temporary filesystem
> >> > in RAM.
> >>
> >> What about just mounting /usr as soon as the system boots?
> >
> >
> > Please read the thread next time. The topic under discussion is
> > solutions to the problem of not being able to do exactly that.
>
> Then I suppose you can surely explain in a nutshell why can't init
> scripts simply do that?
>
It is trivially easy to create a circular loop whereby code required to
mount /usr now resides on /usr.
Which is the entire thrust of this whole thread.
--
Alan McKinnon
alan.mckinnon@gmail.com