artizirk

Arch Linux btrfs install

0. Prerequisites

1. Latest Arch Linux install iso because those have newer kernels and more bugfixes in btrfs.
2. Have previous experience with installing Arch (like you can install arch with a blind fold).

1. Parititions

We will ne two of them, one for /boot and the other one will be a btrfs partition with subvolumes.

1. /dev/sda1 - this will be /boot with vfat filesystem because UEFI or syslinux for legacy BIOS boot

dennisobrien

import bokeh.embed
import bokeh.io
import bokeh.models
import bokeh.models.widgets
import bokeh.plotting
import pandas as pd
from pandas_datareader import wb

bokeh.plotting.output_notebook()

Luthaf

using PyCall

# Change that to whatever packages you need.
const PACKAGES = ["pyyaml"]

# Import pip
try
    @pyimport pip
catch
    # If it is not found, install it

bastman

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

stonehippo

Getting a USB device to show up in a Docker container on OS X

Some background

I was trying to get the Arduino IDE to work inside a Docker container on OS X. I was able to get the IDE working (see Getting X11 GUI applications to work on OS X with Docker), but I could not figure out how to make the USB port for the Arduino visible.

The solution

I first tried to directly map hardware serial port into the Docker container, doing something like this:

mrocklin

jruts

How to delete duplicate nodes and their relationships in neo4j with cypher based on a property of that node?

The problem is easy to understand. We have 'duplicate' nodes in our database based on the 'id' field on the node properties.

Well this sounds easy enough, until you have to actually do it.

First step

My first attempt was to try and figure out which nodes are actualy duplicate (based on a property on the node). This seems to be pretty straightforward.

Cypher:

CliffordAnderson

# Adding APOC and the Spatial Library to Official Neo4j Docker Image

FROM neo4j:latest
MAINTAINER Clifford Anderson <[email protected]>

ENV APOC_URI https://github.com/neo4j-contrib/neo4j-apoc-procedures/releases/download/3.0.4.1/apoc-3.0.4.1-all.jar
ENV GIS_URI https://github.com/neo4j-contrib/m2/blob/master/releases/org/neo4j/neo4j-spatial/0.19-neo4j-3.0.3/neo4j-spatial-0.19-neo4j-3.0.3-server-plugin.jar?raw=true

RUN mv plugins /plugins \
    && ln --symbolic /plugins

ansulev

# Install Arch Linux with full encrypted btrfs subvolume inside luks
# Hardware: BIOS system, Intel GPU, Nvidia Optimus, Toshiba SSD, Wifi
# Please adjust for your needs.
# filename: install-arch-linux-on-btrfs-subvolume-inside-luks.txt
# The official guide: https://wiki.archlinux.org/index.php/Installation_Guide

# Download the archiso image from https://www.archlinux.org/download/
# Copy to a usb-drive
dd bs=4M if=archlinux.iso of=/dev/sdx status=progress oflag=sync # on linux

craigvantonder

#!/bin/bash

# https://www.nginx.com/resources/wiki/start/topics/tutorials/install/

# Switch to root
sudo su

# Add the mainline release
echo "deb http://nginx.org/packages/mainline/ubuntu/ xenial nginx
deb-src http://nginx.org/packages/mainline/ubuntu/ xenial nginx" > /etc/apt/sources.list.d/nginx.list