Re: [RFC] change grub_print_error to use stderr for the utils

[Robert Millan]

On Sun, Aug 17, 2008 at 05:24:07PM +0200, Felix Zielcke wrote:
> Am Sonntag, den 17.08.2008, 17:07 +0200 schrieb Robert Millan:
> > > fz:~# update-grub
> > >         error: out of disk
> > >         error: out of disk
> > >         Updating /boot/grub/grub.cfg ...
> > 
> > This just means someone is reporting this error and shouldn't.  It's a bug.
> > 
> Hi Robert,
> 
> Marco already said on IRC before I even send the mail that the error
> shouldn't be displayed if a dmraid is detected on it.
> Maybe too complicated and the error shouldn't be shown at all.

Hiding errors is a very bad practice.  And hiding them because the output
is ugly or because something is reporting false positives is even worse
IMHO.

This "out of disk" sounds like a false positive indeed.  It's a bug,
somewhere.  Something is handling errors in a place where this particular
error shouldn't be reported.  Maybe it should handle them somewhere else,
or maybe they should be handled selectively.

> The error won't be shown on real GRUB anyway.

Why not?

> Maybe just grub-install and update-grub should be a little changed to
> supress repeating the errors that much, i.e. not on every grub-probe
> run?

That's difficult to archieve due to current design, but sounds to me as
a minor problem in comparison with what we had before.

-- 
Robert Millan

  The DRM opt-in fallacy: "Your data belongs to us. We will decide when (and
  how) you may access your data; but nobody's threatening your freedom: we
  still allow you to remove your data and not access it at all."