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Date: Tue, 3 Jan 2012 17:22:09 +0700
Message-ID: <CAA2qdGVZQdSLiPXwCiXxXAvMacwihqDjZ-wwL55V9dRVNnq+rA@mail.gmail.com>
Subject: Re: [gentoo-user] Re: Beta test Gentoo with mdev instead of udev;
version 3
From: Pandu Poluan <pandu@poluan.info>
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On Tue, Jan 3, 2012 at 17:04, Walter Dnes <waltdnes@waltdnes.org> wrote:
> =C2=A0In the instructions here, I've set up a revised dev-manager ebuild =
in
> an overlay. =C2=A0I've requested the changes to be incorporated into the
> official ebuild and it appears to have been accepted. =C2=A0See...
>
> https://bugs.gentoo.org/show_bug.cgi?id=3D395319
>
> It should be rolled out eventually, and the overlay won't be necessary.
>
Cool! :D
> =C2=A0I think I've found one item so far that requires udev. =C2=A0My lap=
top's
> graphics chip needs a binary blob from radeon-ucode. =C2=A0That binary bl=
ob,
> in turn, requires the presence of /usr/lib/libudev.so.0 which is a
> symlink to /usr/lib/libudev.so.0.9.3 (which is also required). =C2=A0I ca=
n
>
> emerge udev
> move or copy the 2 files over to /root
> unmerge udev
> move or copy the 2 files from /root to /usr/lib/
>
> and it still works. Note that /usr/lib/ is a symlink to /usr/lib64 on my
> 64-bit gentoo.
>
Well it doesn't need udev itself, just libudev.
But if the binary blob is hard-coded to search for
/usr/lib/libudev.so.0{,.9.3}, that means /usr must exist at
boot-time...
... or at least /usr/lib/libudev.so.0{,.9.3}
IMO, providing 1 file (+ 1 symlink) is still much better than having
to provide the *whole* /usr tree during boot-time.
Now, what's needed is to "catalog" (1) essential boot-time devs that
can't be handled by mdev, and (2) essential files that need to exist
under /usr during boot-time.
#1 should be interesting for busybox upstream, while #2 will be
necessary for those trying to wean themselves off udev :-)
We're one step closer to an udev-free Gentoo, yay!
(Come to think of it, has *any* distro ever attempted this...
'unconventional of going udev-free?)
Rgds,
--=20
FdS Pandu E Poluan
~ IT Optimizer ~
=C2=A0=E2=80=A2 LOPSA Member #15248
=C2=A0=E2=80=A2 Blog : http://pepoluan.tumblr.com
=C2=A0=E2=80=A2 Linked-In : http://id.linkedin.com/in/pepoluan