Quick 'n dirty OpenWrt buildroot setup using Alpine Linux

• Download Extended x86_64
  https://alpinelinux.org/downloads/

• Create a VM with ~2+ cores (it'll be very slow otherwise) and at least 1G of RAM, 2G preferably
  For what it's worth, here are my settings in Hyper-V:
  Machine type: "Generation 2" (UEFI support)
  No "Dynamic Memory"
  Secure Boot disabled
  Virtual CPUs 2 (same as the amount I allocated)
  Checkpoints Disabled

• Start VM (boot from the ISO)

• Login as root

• Run setup-alpine

• Set keyboard layout and variant

• Set hostname (buildbox or whatever you prefer)

• Enable eth0 and use dhcp, no manual configuration

• Set password for root

• Set timezone (i.e Europe/Oslo )

• No proxy (unless you have one...)

• NTP Client --> openntpd

• Set mirror (preferably a close one)

• Use openssh as SSH server

• Use disk sda, use it as sys and confirm
  Power off (use the cmd poweroff) and remove the mounted iso

• Boot up

• Login as root

• Run apk update

• Run apk upgrade

• Create a non root user
  adduser m00
  Always make it a habit to login as that user from now on

• Run ifconfig to determine ipaddress, logout and login using a SSH client instead (as m00)

• su root su root

• Install packages
  apk add git build-base bash ncurses-dev perl tar findutils patch coreutils gawk grep unzip bzip2 wget python2-dev python3-dev linux-headers curl diffutils bsd-compat-headers less diffutils

• Exit as root exit

• Setup git (barebone)

git config --global core.editor "nano"
git config --global user.name "m00"
git config --global user.email [email protected]

git will ask about these settings eventually so just set these for now

• Make a dir for your repo...
  mkdir openwrt

• Clone OpenWrt (cd first to whatever dir you created)
  git clone https://github.com/openwrt/openwrt.git