On Monday, 12. September 2011 14:37:24 Canek Peláez Valdés wrote:
> On Mon, Sep 12, 2011 at 1:39 PM, Michael Mol <mike...@gmail.com> wrote:
> > On Mon, Sep 12, 2011 at 1:17 PM, Alan Mackenzie <a...@muc.de> wrote:
> >> On Mon, Sep 12, 2011 at 05:33:34PM +0200, Michael Schreckenbauer wrote:
> >>> On Monday, 12. September 2011 15:02:48 Alan Mackenzie wrote:
> >>> > Hope nobody minds me starting a new thread with an accurate
> >>> > name.
> >>> > 
> >>> > Which version of udev is it that has this nauseating feature of
> >>> > needing /usr loaded to boot?
> >>> > 
> >>> > Somewhere in that version's source will be several (or lots of)
> >>> > "/usr". Just how difficult is it going to be to replace
> >>> > "/usr/bin" with "/bin" throughout the source?
> >>> 
> >>> you misunderstood something. udev is able to run arbitrary scripts.
> >>> Some of those scripts are located in /usr/* or need something
> >>> there. I doubt you will find references to /usr in the
> >>> udev-sources.
> >> 
> >> Well, I'm a hacker.  udev is free source, therefore fair game.  I
> >> don't
> >> intend to put up with this nonsense without a fight.  As far as I can
> >> make out, this is just one guy, Kay Sievers, who's on a power trip.
> >>  Are
> >> there any indications at all that he actually talked to anybody in the
> >> wide world before making such a far reaching decision?
> > 
> > udev has always been able to run arbitrary scripts. The trouble is
> > that the arbitrary scripts other packages provide sometimes call for
> > things under /usr.
> > 
> > If I've read messages over the last couple days correctly, I think the
> > recent change is that some stuff udev *directly* depends on, as part
> > of the udev package itself, is being moved into /usr.
> > 
> > My best guess is that this allows udev to force the issue; it gets
> > blamed for other packages not loading correctly (when those other
> > packages put things in places which may or may not be available yet),
> > so the udev developer chose to force systems to have all of /usr
> > available before udev is run.
> > 
> > The first step in a clean solution, IMO, is to revert that change. The
> > second step is to fix the 'silent failure' problem for packages which
> > depend on /usr before /usr is available.
> 
> No fixable, in reality. The flexibility of udev is in part in that the
> userspace can (and actually do) run arbitrary scripts and binaries
> from udev rules. You can "fix" the ones that require binaries in /usr
> *NOW*, but not forever, unless you forbid the use of arbitrary
> binaries from udev rules.

Why do you need to run arbitrary scripts to mount /usr?

> Linux has a much better, flexible and automatized (dracut) way of
> doing this, by using an initramfs. With an initramfs you can have the
> smallest / in the world, and mount everything else afterwards. The
> initramfs memory is free'd after the pivot_root happens, so who cares
> how big it is?

KISS. An initramfs is an additional layer, that can fail.

> Regards.

Regards,
Michael


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