Mark Riedesel Klowner

Install Arch Linux with ZFS root filesystem, zfs-dkms, ZFSBootMenu, Pacman Auto-snapshots, Secure Boot enabled

Configure system BIOS

Disable Secure Boot. ZFS modules can not be loaded if Secure Boot is enabled.

ZFS automated install script

Before moving on I need to point out that there exists a script that can automate the configuration and install of a ZFS root system. However as convenient as it sounds the script is limited in flexibility and scope. These limitation cannot be overcome unless one has the time and compacity to edit the script to their liking. If you want to install a ZFS root system as quickly as possible and don't care about any particulars than take a good look at this github page.

Install Arch Linux with ZFS root filesystem, zfs-dkms, ZFSBootMenu, Pacman Auto-snapshots, Secure Boot enabled

Configure system BIOS

Disable Secure Boot. ZFS modules can not be loaded if Secure Boot is enabled.

ZFS automated install script

Before moving on I need to point out that there exists a script that can automate the configuration and install of a ZFS root system. However as convenient as it sounds the script is limited in flexibility and scope. These limitation cannot be overcome unless one has the time and compacity to edit the script to their liking. If you want to install a ZFS root system as quickly as possible and don't care about any particulars than take a good look at this github page.

Notes on header files

After over 20 years working with C/C++ I finally got clear idea how header files need to be organized. Most of the projects in C++ world simply dump everything in .h file, and most of my C++ code was organized this way. Lately I started to separate function declaration from implementation as it was done in C. Now .h headers are exclusevely intended for function and class declaration with doxygen documentation style comments. Inline implementation of functions, class method implementation, etc. goes into .inl headers or .cpp files.

For example .h file would contain only declaration and doxygen style documentation comment:

	/// Convert size in bytes to human readable string.
	void prettify(char* _out, int32_t _max, uint64_t _value)

	tool
	extends AudioStreamPlayer #exactly the same code should work for extending 2D and 3D versions
	class_name RoundRobinPlayer

	export(int, "sequence", "random", "shuffle") var queue_mode = 0
	export(Array, AudioStream) var playlist = [] setget _set_playlist, _get_playlist
	export(bool) var round_robin_playing = false setget _set_playing, _is_playing # can't override properties so use this for animations

	var playlist_index = -1 # current position in the playlist
	var shuffled_indices = [] # Array<int> of shuffled playlist indices

	# /etc/systemd/system/docker.service.d/docker-nftables.conf
	# disable iptables in docker, allowing nftables to do work
	[Service]
	ExecStart=
	ExecStart=/usr/bin/docker daemon -H fd:// --iptables=false

	#!/bin/sh
	### BEGIN INIT INFO
	# Provides: btsync
	# Required-Start: $local_fs $remote_fs
	# Required-Stop: $local_fs $remote_fs
	# Should-Start: $network
	# Should-Stop: $network
	# Default-Start: 2 3 4 5
	# Default-Stop: 0 1 6
	# Short-Description: Multi-user daemonized version of btsync.

	--[[a parametric function describing the Bezier curve determined by given control points,
	which takes t from 0 to 1 and returns the x, y of the corresponding point on the Bezier curve]]
	function bezier(xv, yv)
	local reductor = {__index = function(self, ind)
	return setmetatable({tree = self, level = ind}, {__index = function(curves, ind)
	return function(t)
	local x1, y1 = curves.tree[curves.level-1][ind](t)
	local x2, y2 = curves.tree[curves.level-1][ind+1](t)
	return x1 + (x2 - x1) * t, y1 + (y2 - y1) * t
	end

	# Graham Scan - Tom Switzer <[email protected]>

	TURN_LEFT, TURN_RIGHT, TURN_NONE = (1, -1, 0)

	def turn(p, q, r):
	return cmp((q[0] - p[0])(r[1] - p[1]) - (r[0] - p[0])(q[1] - p[1]), 0)

	def _keep_left(hull, r):
	while len(hull) > 1 and turn(hull[-2], hull[-1], r) != TURN_LEFT:
	hull.pop()