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Date: Tue, 15 Mar 2011 20:59:49 +0000
From: Ed W <lists@wildgooses.com>
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To: gentoo-embedded@lists.gentoo.org
Subject: Re: [gentoo-embedded] Suggestion for INSTALL_MASK
References: <4D74E2B7.9000906@gmx.ch> <1299555980.20664.2.camel@here>
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On 08/03/2011 03:46, solar wrote:
> On Mon, 2011-03-07 at 14:50 +0100, Martin Gysel wrote:
>> Hi there
>>
>> I'm looking for a 'good' INSTALL_MASK file/definition to use with my
>> embedded system. As the flash on the boards is rather small I only want
>> to have the really required files on it.
>> Can anyone share his INSTALL_MASK?
>
> For a read-only compat flash based system and ~10 or so pkgs. I've used
> *.a *.o *.la /usr/include *.pc *.pyc *.pyo *.example *.sample
>
> Clearly you can nail it down abit more for your own needs. But for mine
> that was fairly good to grab the majorituy of the bloat.
OK, here's my current mask. Note this is for a run only system, I build
the image elsewhere so no portage stuff required on the final image (I
do something like build the root, then strip that down a little further
by rsync'ing to the final target)
export INSTALL_MASK="usr/include/ usr/portage usr/share/doc
usr/share/gtk-doc usr/share/info usr/share/man var/cache/ var/db/pkg
var/lib/gentoo var/lib/portage *.a *.o .keep_* *.la *.pc *.pyc *.pyo
*.example *.sample"
Additionally I am playing with this for installing perl:
export INSTALL_MASK="${INSTALL_MASK} */usr/lib/perl5/*.h
usr/lib/perl5/5.*/ExtUtils/ usr/lib/perl5/5.*/CPAN/
usr/lib/perl5/5.*/CPANPLUS/ usr/lib/perl5/5.*/*-linux-*/auto/Encode/JP
usr/lib/perl5/5.*/*-linux-*/auto/Encode/KR
usr/lib/perl5/5.*/*-linux-*/auto/Encode/CN
usr/lib/perl5/5.*/*-linux-*/auto/Encode/TW
usr/lib/perl5/5.*/*-linux-*/Devel/
usr/lib/perl5/5.*/*-linux-*/auto/Devel/
usr/lib/perl5/5.*/Module/CoreList.pm usr/lib/perl5/5.*/Module/Build*
usr/lib/perl5/5.*/perl5db.pl usr/lib
/perl5/5.*/[Pp]od usr/lib/perl5/5.*/unicore/mktables
usr/lib/perl5/5.*/unicore/TestProp.pl */usr/lib/perl5/5.*/unicore/*.txt
*/usr/lib/perl5/*.pod"
I then strip a bunch of comments out of some perl files:
sed -i -e 's/^#.*//' -e '/^$/d'
${TARGET}/usr/lib/perl5/5.12.2/unicore/lib/*/*.pl
and finally build the target with something like:
rsync -aH --progress --delete --delete-excluded \
--exclude 'usr/portage/*' \
--exclude 'var/db/pkg' \
--exclude 'var/cache/*' \
--exclude 'var/lib/portage' \
--exclude 'var/lib/gentoo' \
${ROOT}/ ${TARGET}
Using squashfs + aufs2 (stackable squashfs so I can add more stuff
later) that gets me a fairly decent base installation including routing,
wireless, shorewall, perl and some more, in under 10MB
Good luck
Ed W