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From: Kfir Lavi <lavi.kfir@gmail.com>
Date: Thu, 24 Mar 2011 16:33:44 +0200
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Subject: Re: [gentoo-embedded] Wind River Linux experience
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On Thu, Mar 24, 2011 at 3:13 PM, Ed W <lists@wildgooses.com> wrote:
> On 23/03/2011 14:54, Kfir Lavi wrote:
>> Wow James thanks a lot for your insight.
>> It seems that WR is a giant BSP house, which is good for really prelimin=
ary
>> explorations of new hardware. I can see their benefit for an
>> organization that
>> don't really know what is Linux.
>> The company I work with have a lot of projects. Most of them relay on a
>> known
>> and debugged hardware. I'm not intending to change all of their working
>> way,
>> but for a start I'm trying to push Gentoo in the project I'm working on,
>
> I think the most important question for you is the "best tools for the
> job". =C2=A0I can't answer that, but just some advocacy for gentoo as an
> embedded tool, look back at the thread "Some good words for Gentoo
> Embedded"?
>
> I'm only building a small x86 board and I haven't mastered Catalyst so
> I'm building my root using what is popularly known as "Tiny Gentoo".
> However, the construction is incredibly simple and roughly my build is a
> script which wraps something like:
>
> ROOT=3D/builds/my-build emerge baselayout uclibc busybox openresolv\
> =C2=A0dhcpcd dropbear your_other_stuff
>
> And pretty much that's it, you have a working, bootable, build. =C2=A0Giv=
e or
> take fixing a bunch of bugs in ebuilds which aren't tested on your
> architecture, this means you now have the entire portage library at your
> disposal for building your embedded system, and that's likely worth a lot=
?
>
> I think you end up deviating from standard portage quite a bit for
> embedded and surely lots of folks here have great experience that we
> don't seem to share much? =C2=A0But I find for example I need a lot of
> customised /etc/ scripts, or tweaks to init.d files, etc. =C2=A0It's tric=
ky
> to decide if these should be overlays added at the end, or to patch the
> ebuild to install them pre-customised. =C2=A0I use a bit of a blend and
> recently I have started trying to use /etc/portage/patches/cat/pkg
> (badly documented) as a way to hook into ebuilds without having to patch
> every version, forever, and lightly tweak the install.
>
>
> I think "tools" are very personal and you can make a case for the tools
> which fit your needs. =C2=A0However, I guess the point here is only that
> Gentoo is a very nice tool for embedded and may meet the requirements of
> many folks have, but who otherwise pass it over for more well known
> alternatives.
>
> Good luck and if you do use Gentoo, please share something on what you
> learn?
>
> Ed W
>
>
Oh,
I find it very hard to share or document what I'm doing. I really want
to do it,
and my gentoo blog really needs some new content, but I just don't have tim=
e.
I'm working everyday until 22:00 and my 7months son also needs me, so I rea=
lly
try to be everywhere.
I'm pushing Gentoo, because it can be tailored automatically for a lot
of projects.
>From small devices to a cluster. The initial go is very hard with
steep curve, but
what I aim for is the ease of use and replication when problem strike or wh=
en
moving to new project.
As for Catalyst, I'll try to post my conclusion about this tool for our use=
.
I'll try to document more what I'm doing.
Regards,
Kfir