Re: [gentoo-user] Re: Anyone switched to eudev yet?

[Alan Mackenzie]

On Sun, Dec 23, 2012 at 07:03:25PM +0200, Nuno J. Silva wrote:
> On 2012-12-23, Alan McKinnon wrote:

> > On Sun, 23 Dec 2012 12:22:24 +0200
> > nunojsilva@×××××××.pt (Nuno J. Silva) wrote:

> >> On 2012-12-18, Alan McKinnon wrote:

> >> > On Tue, 18 Dec 2012 09:08:53 -0500
> >> > Michael Mol <mikemol@×××××.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?

Because certain people with influence have rearranged the filesystem so
that programs within /usr are absolutely necessary for booting; they are
needed _before_ init has a chance to mount /usr.  So either /usr has to
be in the root partition, or crazy kludges need to be used to mount /usr
before the kernel runs init.

> --
> Nuno Silva (aka njsg)
> http://njsg.sdf-eu.org/

-- 
Alan Mackenzie (Nuremberg, Germany).