Date: Fri, 8 Sep 2017 15:03:30 -0400 From: Anton Yuzhaninov <citrin+bsd@citrin.ru> To: freebsd-questions@freebsd.org Subject: Re: help with condensing bsd Message-ID: <8e90abb6-79b0-5f2a-8c1a-4126a663f0ee@citrin.ru> In-Reply-To: <b591f6b4-0a03-3db2-b823-c7df349b636e@tysdomain.com> References: <b591f6b4-0a03-3db2-b823-c7df349b636e@tysdomain.com>
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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 [1] 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 [2] 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). Also you can save space by not keeping /usr/ports and installing binary packages. If custom options are need you will have to run own package repo using poudriere. 1. http://termbin.com/ad1c 2. http://termbin.com/rvd8
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