help with condensing bsd
freebsd at edvax.de
Mon Sep 11 16:13:28 UTC 2017
On Mon, 11 Sep 2017 09:59:49 -0400, Littlefield, Tyler wrote:
> On 9/8/2017 3:03 PM, Anton Yuzhaninov wrote:
> > On 09/08/17 12:04, Littlefield, Tyler wrote:
> >> I wish to create a smaller BSD as I have a vps with a minimal amount of
> >> space.
> > 1. Reducing kernel size.
> > create custom config - add to it all you need (drivers, geom/netgraph
> > modules e. t. c.) and add line
> > makeoptions NO_MODULES=yes
> > only kernel will be build without modules.
> > Kernel can be compressed using gzip -9
> > 2. World.
> > Simple way - just disable optional stuff via src.conf
> > Read man src.conf and add knobs like
> > WITHOUT_ACCT=yes
> > WITHOUT_ACPI=yes
> > WITHOUT_AMD=yes
> > e.t.c.
> > to you src.conf
> > Not all can be switched off via src.conf, but if you not building image
> > for tiny embedded system a few extra Mb probably doesn't matter.
> >> I know that I can buildworld and cut a lot of things out (does
> >> anyone have a good example from where to start)?
> >> My question is this: Once I buildworld and buildkernel, how do I package
> >> these up? I have a few systems that need this new buildworld and
> >> buildkernel, and i also want to replace the base iocage jail.
> > Different options are possible.
> > I use this way:
> > On build host I run script make-release.sh 
> > result of this script: files base.txz kernel.txz e. t. c.
> > /usr/src/release/release.sh can be used instead, but for me it was more
> > easy to write own script than customize release.sh.
> > To upgrade OS on VPS I use shell script  which fetches this files and
> > extracts them using tar. To upgrade files in /etc I currently use
> > etcupdate (because mergemaster needs /usr/src).
> > If you already have OS installed in this VPS you can install you custom
> > build (and copy /etc/src.conf used for this build) and then run
> > make delete-old && make delete-old-libs
> > to delete switched off parts (but you will need /usr/src for this task).
> To bad there's not a way to do this without /usr/src.
Correct. All the make targets depend on various files inside
that subtree to determine the correct actions.
> If you just extract this new system over your current system,
> how does that get rid of things you removed?
It doesn't. The idea is to extract it to a freshly initialized
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...
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