On Wed, 2011-04-13 at 21:04 -0500, Mike McCarty wrote:
> There is an incompatibility with using udev and /usr being a
> separate file system, which users of LFS need to be aware of.
> It is presently not possible, in general, to use udev and have
> /usr be a separately mounted file system. This is something to
> consider when planning the layout of the disc drives. The current
> implementation of udev is incompatible with the File System Hierarchy
> Standard.

Yes, there's been a bit of discussion of this among the distributions of
late. Here's a couple of the links I've read on the subject...

http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken

http://lists.debian.org/debian-devel/2009/05/msg00075.html

http://lists.debian.org/debian-devel/2011/01/msg00152.html


While not universal, there seems to be a growing feeling that having a
separate /usr partition serves no useful purpose these days. The third
of those links gives a pretty good summary of that viewpoint.

As to compatibility with the FHS, distros seem inclined to ignore the
spec, on the basis that it's not being updated, and no longer reflects
reality (e.g no mention of /sys). Another discussion on that subject:

http://lists.debian.org/debian-devel/2009/02/msg00395.html

Simon.

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