Re: [gentoo-dev] Re: Let's redesign the entire filesystem!

["Canek Peláez Valdés" <caneko@gmail.com>]

On Wed, Mar 14, 2012 at 7:07 PM, Rich Freeman <rich0@gentoo.org> wrote:
> On Wed, Mar 14, 2012 at 7:51 PM, Richard Yao <ryao@cs.stonybrook.edu> wrote:
>>
>> I proposed a way that this could work with no effort on the part of the
>> Gentoo developers in one of my earlier emails:
>>
>
> Then go ahead and make it happen.  If as you say no dev participation
> is needed there is nothing Gentoo needs to do to support this.
>
> On Wed, Mar 14, 2012 at 6:49 PM, Greg KH <gregkh@gentoo.org> wrote:
>>
>> We aren't Debian here people, we don't support "everything" :)
>>
>> If you want to support both, great, feel free to step up and do the
>> work.
>>
>
> Gentoo is about choice, but it is largely about the choices that
> people are willing to step up and maintain.
>
> A few months ago there was a big thread and lots of devs said that
> systemd isn't supported on Gentoo.  Some devs stepped up and decided
> to maintain it and now I'd say systemd is about as supported on Gentoo
> as Prefix, FreeBSD, Sparc, or MIPS.  That didn't happen because of
> mailing list persuasion - it happened because a few people interested
> in making it happen wrote a bunch of ebuilds.  How do systemd units
> end up in various packages?  The people interested in seeing them
> write good-quality patches and submit bugs, or otherwise work with the
> maintainers to commit them.
>
> For those who don't like the current direction, by all means create an
> overlay called udev-root, mdev-boot, noinitramfs, or whatever.  You
> don't need anybody's permission to do it - just go on github and make
> it happen.  Write some good code.  There are several devs here who
> might even help you out with it, and nobody here is going to object to
> packages going into the main tree as long as they're maintained in
> accordance with Gentoo QA.  Create some USE flags where you need
> tie-ins to other system packages and as long as everything behaves
> nicely and patches are good and maintained, I'm sure the package
> maintainers will accept them.

In that vein... just to let you guys know that I have set up an
overlay that has allowed me to run my Gentoo machines with only
systemd: no OpenRC, no baselayout, no sysvinit:

http://xochitl.matem.unam.mx/~canek/gentoo-systemd-only/

The changes are rather minimal (less than ten lines (usually a cople)
per ebuild changed from the original ebuilds in the tree), and almost
all will go away when the following bugs get fixed:

https://bugs.gentoo.org/show_bug.cgi?id=366173
https://bugs.gentoo.org/show_bug.cgi?id=373219
https://bugs.gentoo.org/show_bug.cgi?id=373219
https://bugs.gentoo.org/show_bug.cgi?id=373219
https://bugs.gentoo.org/show_bug.cgi?id=399615
https://bugs.gentoo.org/show_bug.cgi?id=399615
https://bugs.gentoo.org/show_bug.cgi?id=399615
https://bugs.gentoo.org/show_bug.cgi?id=405703
https://bugs.gentoo.org/show_bug.cgi?id=408379

Bug 373219 is specially problematic, since several scripts in packages
on the tree source /etc/init.d/functions.sh, (which lives in OpenRC),
and don't depend on OpenRC explicitly. I wrote a little script that
replaces the einfo, ewarn, etc. functions of OpenRC, and it seems to
be working. I also wrote alternative versions of the packages on the
tree that implicitly depend on OpenRC, so they now explicitly depend
on a little package that only installs my script.

It seems to be working.

If you guys want to try it, I would love to hear some comments about
it. (Usual disclaimer; if it breaks, you get to keep all the pieces).

Oh, and obviously the only supported setups are those with /usr in the
same partition as /; or, if /usr is in a separated partition, systems
that use an initramfs to mount it.

Regards.
-- 
Canek Peláez Valdés
Posgrado en Ciencia e Ingeniería de la Computación
Universidad Nacional Autónoma de México